How to Write a LinkedIn Post That Actually Gets People Commenting
The comment-below format works because the comment is the price. How to pick the offer, the word, and the rhythm, and why putting the link in the post costs you the reach that made it worth posting.
What is a "comment below and I'll send it" post?
It is a post that offers something useful and asks people to comment a word to get it, instead of putting a link in the post. You write "comment TEMPLATE and I'll send it over," and everyone who does receives it in their DMs.
The comment is the price. That sounds like friction, and it is the entire reason the format works. Picking the thing you give away is half the job, so start with these lead magnet ideas.
Why not just put the link in the post?
Because a link takes people off LinkedIn, and LinkedIn notices. Posts with outbound links reliably reach fewer people than posts without them, so the link costs you the reach that would have made the link worth having.
A comment does the opposite. It is engagement, which pushes the post further, and every comment is public proof that other people wanted the thing too.
What makes people actually comment?
Specificity. "Comment GUIDE for my guide on LinkedIn" is vague enough that nobody moves. "Comment TEARDOWN and I'll send the 12 outreach sequences we ran last quarter, with reply rates" tells someone exactly what lands in their inbox.
The test is whether a stranger can picture the thing. If they cannot, they scroll, because commenting costs them a small amount of public credibility and they will not spend it on a maybe.
How should you write the post itself?
Earn the ask before you make it. Spend the post being useful on its own, then offer the deeper version at the end. A post that is only a delivery mechanism for an ask reads as an ad, and people are good at spotting those now.
A shape that works: open with a specific claim or number, give three or four genuinely useful points, then say that the full thing is written up and they can comment for it.
What word should you use?
One word, easy to spell, and impossible to type by accident. TEMPLATE, TEARDOWN, PLAYBOOK, NUMBERS. Avoid anything someone might use in a normal comment, or you will DM people who were just talking.
Uppercase helps, not because the tool needs it but because it reads as an instruction and it stands out in a feed.
How long should the post be?
Long enough to be worth reading without the freebie. If the post only makes sense as a lead magnet ad, the comments come from people who want a free thing rather than people who want your thing, and those are different audiences with very different close rates.
Aim for something that would have been a decent post even with no offer attached.
What do you do when the comments arrive?
Every commenter should get the resource in a DM, and a public reply on their comment telling them to look. Doing that by hand works up to about twenty comments and then quietly stops working, which is the point people start looking for a tool.
If you automate it, the public reply has to wait for a confirmed DM, and it must not be the same sentence every time. Both mistakes are visible to everyone reading your comment section.
How often can you run this format?
Not every post, or it stops being an offer and becomes a toll booth. Roughly one in five or six posts is a reasonable rhythm, with the rest being ordinary useful posts that ask for nothing.
The format works because it is occasional. People will comment for a good resource from someone who mostly just gives things away. They will not do it every time for someone who never posts without a hook.