How to Build a Personal Brand on LinkedIn Using Only Comments

# How to Build a Personal Brand on LinkedIn Using Only Comments

Here's the advice every founder gets about building a personal brand on LinkedIn:

"Post consistently. 3-5x per week. Share insights, tell stories, build an audience."

And here's what happens when most founders try:

- Week 1: Excited. Write 3 thoughtful posts.

- Week 2: Struggling for ideas. Write 2 mediocre posts.

- Week 3: Writer's block. Write 1 "I'm hiring!" post.

- Week 4: Burned out. Post nothing.

- Week 5: Guilt. "I should post more." Still post nothing.

- Week 12: Give up. "I'm just not a content creator."

What if I told you there's a better way to build your personal brand on LinkedIn — without posting at all?

Strategic commenting.

Not the "Great post!" kind. The kind that puts your name in front of thousands of people in your ICP every week, builds recognition as a thoughtful expert, and creates opportunities without you ever having to stare at a blank LinkedIn post composer.

This guide proves why commenting is a faster, more sustainable path to personal brand-building than posting — especially for founders who hate creating content.

The Counterintuitive Truth: Commenting > Posting for Most Founders

Let's start with the uncomfortable truth most LinkedIn gurus won't tell you:

For most founders, commenting on other people's posts builds your brand faster than publishing your own posts.

Here's why:

Reason 1: You're Borrowing a Bigger Audience

When you publish a post on LinkedIn, your reach is limited by:

- Your follower count (probably 500-2,000 if you're not a LinkedIn influencer)

- LinkedIn's algorithm (which shows your post to ~10-20% of your followers unless it goes viral)

- Your posting consistency (sporadic posting = lower algorithm trust)

Realistic reach for a typical founder's post: 100-300 people.

When you comment on someone else's post (especially someone with a larger, more engaged audience), your comment is visible to:

- Everyone who views that post (potentially 5,000-50,000+ people)

- Everyone who engages with the post (hundreds to thousands)

- The post author's followers (who are often your ICP)

Realistic reach for a comment on a high-engagement post: 1,000-10,000+ people.

You're borrowing their audience. And if you do it consistently, you're building your brand in front of an audience 10-100x larger than your own.

Reason 2: Comments Require 90% Less Effort

Publishing a LinkedIn post takes:

- 30-60 minutes to write, edit, format

- Mental energy to come up with an idea

- Vulnerability (you're putting yourself out there)

- Consistency (you need to post 2-3x/week to build momentum)

Leaving a thoughtful comment takes:

- 2-3 minutes per comment

- No original idea required (you're responding to someone else's idea)

- Lower stakes (comments feel less exposed than posts)

- Flexibility (you can comment daily without burnout)

For the same time investment (60 minutes), you can publish 1 post OR leave 20 high-quality comments.

20 comments on high-engagement posts will reach more people and generate more opportunities than 1 post.

Reason 3: Comments Build Credibility Faster

When you post on LinkedIn, you're asking people to pay attention to you. You're the protagonist.

When you comment thoughtfully on other people's posts, you're adding value to existing conversations. You're the helpful expert who shows up where your audience already is.

Which builds trust faster:

- Scenario A: You publish 10 posts about SaaS pricing over 5 weeks. A few people like them. Maybe one or two comment.

- Scenario B: You leave 10 thoughtful comments on posts about SaaS pricing written by well-known founders. Each comment gets 10-20 likes and 2-3 replies from other founders.

Scenario B builds your brand faster because you're visible in contexts where your credibility is reinforced by association (you're engaging with respected voices) and by social proof (other people are engaging with your insights).

The Visibility Math: Why Borrowed Reach Wins

Let's run the numbers on two LinkedIn brand-building strategies over 90 days:

Strategy A: Posting (The "Standard Advice")

- Posting frequency: 3x per week

- Time per post: 45 minutes (ideation + writing + editing)

- Total time investment: 90 days x 3 posts/week / 7 days x 45 min = ~29 hours over 90 days

- Total posts: 39 posts

- Average reach per post: 200 people (typical for non-influencer founder)

- Total reach: 7,800 impressions

- Engagement: 5-10 likes per post, 0-2 comments

- Brand outcome: Modest visibility within your existing network. Minimal expansion.

Strategy B: Strategic Commenting (The "Borrowed Reach Approach")

- Commenting frequency: 10 comments per day, 5 days/week

- Time per comment: 3 minutes (reading post + writing comment)

- Total time investment: 90 days x 10 comments/day x 5 days/week / 7 days x 3 min = ~29 hours over 90 days

- Total comments: 600 comments

- Average reach per comment: 2,000 people (conservative estimate for high-engagement posts)

- Total reach: 1,200,000 impressions

- Engagement: 5-15 likes per comment, 1-3 replies per comment

- Brand outcome: Massive visibility across your ICP's existing networks. Recognized as a frequent, thoughtful contributor.

Same time investment. 154x more reach.

The math doesn't lie. Comments win.

The Consistency Framework: How to Show Up Without Burning Out

The biggest obstacle to personal brand-building on LinkedIn is consistency. Most founders can't sustain a 3x/week posting schedule.

But you CAN sustain a 10-comments/day habit — if you build the right system.

The 15-Minute Daily Routine

Minutes 0-5: Find 10 Posts

1. Open LinkedIn

2. Use search filters: "Posts" + "People" + [your ICP job titles]

3. Look for posts with 20-100 comments (proof of engagement, but not so viral that your comment gets buried)

4. Open 10 posts in new tabs

Pro tip: Create a list of 20-30 people in your ICP who post regularly. Check their profiles first.

Minutes 5-13: Write 10 Comments

1. Read each post (actually read it, don't skim)

2. Draft a 35-55 word comment using one of these frameworks:

- Agree + Add: "Completely agree on [point]. What I'd add: [your insight]. Have you seen [question]?"

- Story: "We experienced this at [company]. [Story]. [Question]."

- Question: "How did you [specific action]? [Why you're asking]."

3. Post each comment

Minutes 13-15: Follow-Up on Yesterday's Comments

1. Check notifications for replies to yesterday's comments

2. Reply to 2-3 of them to keep conversations going

That's it. 15 minutes. Every weekday.

No ideation. No blank page paralysis. No content creation stress. Just show up, add value, and move on.

Voice Development: How to Sound Like YOU (Not Everyone Else)

The biggest fear founders have about commenting: "Won't all my comments sound the same? Won't I sound generic?"

Only if you're copying templates without personalizing them.

Here's how to develop a recognizable commenting voice:

Step 1: Identify Your Natural Communication Style

Answer these questions:

- Tone: Are you direct and no-nonsense, or warm and encouraging?

- Length: Do you naturally write short, punchy sentences or longer, nuanced thoughts?

- Examples: Do you lead with data, stories, or frameworks?

- Questions: Do you ask a lot of questions, or do you make statements?

Example:

- Founder A (Direct): "We tried this. It didn't work. Here's why."

- Founder B (Warm): "I love this framing! We had a similar experience — curious how you approached [question]."

Both are valid. Pick the one that feels natural.

Step 2: Create Your "Voice Guide"

Write down 3-5 examples of comments or messages you've written that sound unmistakably like you. Use these as your style reference.

Example voice guide (direct, data-driven founder):

"We ran this exact experiment at [company]. Increased trial length from 14 days to 30 days. Conversion dropped from 12% to 7%. Theory: urgency drives action. Have you tested trial length?"

Example voice guide (warm, story-driven founder):

"This resonates so much! We made a similar mistake early on — tried to be everything to everyone and ended up serving no one well. The day we picked one ICP and said no to everyone else, everything clicked. How did you find the courage to narrow your focus?"

Keep these examples handy. When writing a new comment, check: does this sound like me?

Step 3: Add Personal Details

The easiest way to make your comments unique: add personal details only you would know.

Generic comment:

"Great point about pricing. Value-based pricing works better than feature-based."

Personal comment:

"Great point about pricing. We switched from per-seat to per-outcome pricing last quarter (e.g., charge for 'reduce churn by 15%' instead of 'number of users'). Conversion went from 9% to 14%. How did you validate the value metric before rolling it out?"

The second comment could only have been written by you. That's voice.

How to Build Recognition Without Creating Original Content

Personal branding isn't about creating content. It's about being recognizable and memorable.

Here's how comments build recognition:

Recognition Layer 1: Frequency

The rule: Show up consistently in the same spaces where your ICP hangs out.

If your ICP is SaaS founders, comment on posts by Lenny Rachitsky, Dharmesh Shah, Jason Lemkin, and other well-known founder voices. Your name will appear in those comment threads 2-3x per week.

After a month, people will start to recognize your name: "I've seen this person before."

Recognition Layer 2: Quality

The rule: Every comment should add unique value, not just affirm the post.

Generic comments are invisible. Thoughtful comments get remembered.

Invisible:

"Totally agree! Thanks for sharing."

Memorable:

"We saw this exact pattern in our data. Companies with <10 features had 2x higher activation rates than those with 20+ features (analyzed 150 SaaS onboarding flows). Does this align with what you've seen, or is there a point where more features = more value?"

Quality creates memorability.

Recognition Layer 3: Voice Consistency

The rule: Sound like the same person every time.

If your comments alternate between hyper-formal and super casual, between data-driven and purely anecdotal, people won't recognize you. Consistency in voice = consistency in brand.

Pick your tone. Stick with it.

Recognition Layer 4: Recurring Themes

The rule: Comment on topics you want to be known for.

If you want to be known as "the founder who understands SaaS pricing," comment on pricing posts. Don't scatter your energy across unrelated topics.

Focused brand: 100 comments on pricing over 90 days = "This person knows pricing."

Scattered brand: 10 comments on pricing, 10 on hiring, 10 on fundraising, 10 on productivity, 10 on AI tools = "This person comments on LinkedIn sometimes."

Focus creates expertise positioning.

The Proof: Real Founders Who Built Brands Without Posting

Let's look at real examples:

Case Study 1: B2B SaaS Founder (Pre-Seed)

Strategy:

- Commented 10x/day on posts by SaaS founders (Lenny, Jason Lemkin, etc.)

- Focused exclusively on pricing and monetization topics

- Never published a single LinkedIn post

Results after 90 days:

- 15+ warm inbound DMs from founders asking about pricing strategy

- 3 discovery calls that turned into paid consulting gigs

- Invited to speak on a SaaS pricing panel (organizer saw his comments)

Brand outcome: Known as "the pricing guy" in his niche — without ever creating content.

Case Study 2: Founder/Investor (Series A)

Strategy:

- Commented on posts by other investors and operators

- Shared contrarian takes (respectfully) on popular posts

- Posted 1x/month, but commented 50x/month

Results after 6 months:

- Follower count grew from 800 to 3,200

- 20+ cold inbound pitches from founders who'd seen his comments

- Featured in a newsletter about emerging investors (editor noticed his comments)

Brand outcome: Recognized as a thoughtful, operator-minded investor — built mostly through comments.

When Commenting Beats Posting (And When It Doesn't)

Commenting isn't always better than posting. Here's when each approach wins:

✅ Commenting Wins When:

- You hate creating content (commenting requires no original ideas)

- You have a small follower count (borrowed reach beats your own reach)

- You want to build relationships with specific people (commenting is relational, posting is broadcast)

- You're time-constrained (10 comments in 15 min vs 1 post in 45 min)

- You're early-stage (you need visibility and pipeline, not thought leadership)

✅ Posting Wins When:

- You have a large, engaged follower base already (your reach is bigger than borrowed reach)

- You're building a media brand or course business (you need your own platform)

- You have original frameworks or research to share (comments are too short for deep content)

- You enjoy writing and have the consistency to post 3x/week

For most founders, commenting is the better starting point. Build your brand through comments first. Once you have 2,000+ engaged followers, layer in posting.

Tools That Make Comment-Based Branding Sustainable

The 15-minute daily routine works, but only if you can sustain it. Most founders burn out after 2-3 weeks because:

1. Finding high-engagement posts takes time

2. Writing thoughtful comments from scratch is mentally taxing

3. Tracking which comments are building your brand is hard

This is why we built [Remarkly](https://remarkly.co).

What Remarkly does:

- Finds high-engagement posts from your ICP — no more scrolling

- Drafts comments in your voice — trained on your writing

- Tracks engagement and brand metrics — see which comments are driving profile views

- You approve everything — nothing posts without your review

You still own your brand. Remarkly just handles the grunt work so the 15-minute routine actually takes 15 minutes.

If you want to build a personal brand on LinkedIn without burning out on content creation, check out [Remarkly's LinkedIn comment generator](/tools/linkedin-comment-generator).

The 90-Day Comment-Based Branding Plan

Here's how to build a recognizable personal brand on LinkedIn in 90 days using only comments:

Days 1-30: Establish Frequency

- Goal: Show up consistently.

- Activity: 10 comments/day, 5 days/week.

- Focus: Comment on the same 20-30 people repeatedly (your ICP or adjacent thought leaders).

- Metrics: Track profile views and follower growth.

Days 31-60: Refine Voice

- Goal: Develop a recognizable commenting style.

- Activity: Continue 10 comments/day. Review which comments get the most engagement.

- Focus: Double down on frameworks and tones that get replies.

- Metrics: Track reply rate and repeat engagers.

Days 61-90: Build Positioning

- Goal: Be known for a specific expertise.

- Activity: Continue 10 comments/day, but focus 80% of comments on one topic (e.g., pricing, hiring, GTM strategy).

- Focus: Become the person who always has a smart take on [your topic].

- Metrics: Track inbound DMs, speaking invites, or consulting inquiries related to your topic.

Expected outcome after 90 days:

- 600 comments across high-engagement posts

- 1,200,000+ impressions (conservatively)

- Recognizable name in your niche

- 10-20 warm inbound DMs from your ICP

- Positioned as an expert in your chosen topic

The Bottom Line

You don't need to post on LinkedIn to build a personal brand. You need to be visible, credible, and memorable.

Strategic commenting gives you all three:

- Visible: Borrowed reach puts you in front of 10-100x more people than your own posts

- Credible: Thoughtful comments in high-value conversations position you as an expert

- Memorable: Consistency + voice + focus = recognition

The formula:

- 10 comments/day on high-engagement posts from your ICP or adjacent thought leaders

- 15 minutes/day

- 90 days of consistency

- Result: Recognizable personal brand without creating a single piece of original content

Start today. Find 10 posts from people in your niche. Leave thoughtful comments. Track your profile views and follower growth. Do it again tomorrow.

And if you want help making this sustainable, [try Remarkly free](https://remarkly.co).