Guide · 7 min read
How to use comments to build a LinkedIn presence: whose posts to comment on, what a comment worth reading looks like, and a routine that fits in 15 minutes.
On LinkedIn, a comment is shown to the commenter's network as well as the post author's. A thoughtful comment under a popular post in your field puts your name and headline in front of people who have never heard of you, and it does so without you having to write a post.
For anyone who does not want to publish every day (most people), commenting well is the most direct way to be known in a niche. It also builds relationships: authors notice who adds to their posts, and a few good comments often lead to a conversation in messages.
The test is simple: would the comment still be interesting if the post were deleted? "Great insights, thanks for sharing!" fails. A comment that adds an example, a different view or a hard question passes.
LinkedIn rewards a professional, warm register, but not corporate language. Write the way you would speak to a colleague you respect: full sentences, no slang, no buzzwords. Two to four sentences is the right length for most comments. Anything longer belongs in its own post.
Avoid the habits that make comments look automated: the same opener every time, emoji walls, a list of hashtags, or tagging people who were not part of the conversation.
Your comment shows your name and headline. The headline is the line people judge in a second, so make it say what you do and for whom, not just a job title. When someone clicks through, the featured section and the last few posts should confirm that.
LinkedIn's rules target automation: tools that post, like or connect for you. A drafting tool that writes a suggestion you edit and post by hand is just a faster way to write. The risk is quality, not rules. A generic AI comment is easy to spot and does you more harm than silence.
ReplyKit drafts three comments per post in a LinkedIn register, each taking a position on something the post actually says. It runs under LinkedIn's own comment box in Chrome, and it never posts for you. Try it on any post with the free LinkedIn comment generator.
Built by · One person
There is no company behind this, just one developer who reads every message. If ReplyKit does not fit how you work, a feature, a platform, a different style of reply, say so. Requests from users decide what ships next.
Prefer email? contact@replykit.eu