LinkedIn Comments: Why They're Worth More Than Likes and How to Use Them

You published a post. Forty likes, three comments. A colleague’s post got twelve likes and twenty-one comments. His reached three times as many people. That’s not a coincidence, and it’s not about having a bigger network either.

LinkedIn’s algorithm doesn’t count reactions — it weighs them. And the weight of a comment is estimated, by analysts who study the platform, at around ten times that of a like. Understanding why changes the way you write, when you post, and who you reply to.

What the Algorithm Is Actually Measuring

LinkedIn doesn’t want to know how many people found your post pleasant. It wants to know how many people stopped long enough to write something. A like takes half a second. A comment takes at least thirty seconds of reading, plus the time to formulate a response. That gap in attention is precisely what the platform is trying to maximise.

The mechanism works like this: in the first two hours after publishing, LinkedIn distributes your post to a small group — typically between 3% and 7% of your network. If that sample generates engagement — and comments carry more weight — the system widens distribution. If nothing happens, the post stops there.

A comment signals that the content triggered a cognitive reaction. A like can mean “I scrolled past and this seems fine.” These are entirely different quality signals.

The Mistake That Wastes Half the Value

There’s a very common behaviour among people who post on LinkedIn: replying to comments with a single word, or not replying at all.

“Thanks!” “Great point!” “Exactly 👍”

Every reply like this is a wasted opportunity. Not because it’s rude, but because the algorithm tracks interactions in replies too. A comment you respond to with a genuine sentence creates a thread. A thread generates more comments. Every additional comment extends the life of the post in the feed.

A sales director who posts about tough negotiations and responds to every comment with two genuine lines can easily reach three times as many people as someone who publishes the same content and then disappears. Not because they have more time — twenty minutes in the first two hours is enough.

Inbound Comments and Outbound Comments

There’s a second level that almost nobody considers: the comments you leave on other people’s posts.

When you comment on a post from someone you’re connected with, LinkedIn registers a signal of an active relationship. This increases the likelihood that your future posts will be shown to that person. It’s a self-reinforcing loop: the more constructive comments you leave, the more responsive your network becomes when you publish.

The logic is the same as a local market. If you buy from someone regularly, when you put out your own goods, that person is more likely to stop and take a look. LinkedIn applies this metaphor in an almost mechanical way.

A practical approach: identify ten profiles with whom you want to build mutual visibility — sector colleagues, potential clients, complementary professionals. Comment on their posts three times a week with something substantive: an experience, a data point, a genuine question. Don’t do it in a forced, tactical way — pick posts where you actually have something to say. The effect shows up within three or four weeks.

Why “Like” Posts and “Comment” Posts Are Different

Not all content generates the same type of interaction, and confusing the two formats is one of the most common mistakes.

A post with a well-designed infographic collects likes. A post that asks an uncomfortable question, recounts a difficult decision, or takes a clear stance collects comments. The first optimises for vanity metrics. The second optimises for distribution.

A practical example: an HR manager who posts “5 signs your hiring process is driving away top candidates” with a clean list will probably collect thirty likes and five comments. The same manager who writes “I turned down an excellent candidate to follow internal procedures. Two years on, I know I got it wrong” will perhaps collect twenty likes and forty comments. The second post will reach four or five times as many people.

The difference isn’t in the style. It’s in the structure: the second post leaves an open space that invites a response. The reader has something to say, or to ask, or to push back on.

How to Build a Post That Generates Comments

This isn’t about adding rhetorical questions at the end of the text — “What do you all think?” is by now transparent and produces little. It’s about constructing the content so that it leaves an unresolved tension.

A few structures that work:

The clear stance. Take a position not everyone shares. “One-hour interviews tell you nothing about anyone” generates more discussion than “How to run effective interviews.” People who disagree comment. People who agree comment out of solidarity.

The partial experience. Tell a real situation and end with the question you asked yourself — not the one you want to pose to the reader. “In the end I went with the most expensive supplier. I still don’t know if I made the right call.” Anyone who’s been in a similar situation will respond.

The data point that contradicts intuition. An unexpected number creates cognitive friction. Cognitive friction produces comments.

Timing Matters as Much as Content

Posting at 7:30 on a Tuesday isn’t superstition. It’s the moment when your audience — managers and business owners in the 35–55 bracket — is commuting between home and the office, phone in hand, mind still fresh.

If your post gains traction in that window, it enters people’s feeds at the moment they’re most inclined to read and comment. If you post at 3:30 p.m. on a Friday, even the best content struggles.

But timing alone isn’t enough. LinkedIn shows posts in the feed based on estimated relevance, not just chronology. A post that already has three solid comments is shown with higher priority than one published thirty minutes later with zero engagement. This means that being present in the very first minutes — to reply to the first comments, to acknowledge someone who wrote something genuine — isn’t about ego. It’s distribution management.

The Shift in Perspective You Need

Publishing on LinkedIn with likes in mind is like opening a shop and optimising for people who glance at the window display. Comments are the people who walk in. And platforms, like commercial landlords, give the best space to whoever draws real foot traffic.

Stop asking yourself “will people like this post?” Ask instead: “will this post make someone want to reply?” These are different questions, and they lead to different choices about what to write, how to close, and who to engage with before and after publishing.