Direct answer: Add something the post did not contain: a data point, a counterexample, a sharper question, a view from your corner of the market. That is the entire craft. "Great post!" and its costumed variants ("So true!", "Thanks for sharing!") warm nothing because they could be written by anyone about anything. A comment sounds real when it could only have been written by someone who read the post and knows the subject. For a recruiter, that knowledge is the product being demonstrated.
Key takeaways
- The comment's job is proving you think, in public, where prospects watch.
- Add, do not applaud: new information beats agreement every time.
- One substantive comment outweighs twenty likes.
- Comments compound: the prospect sees them, and so does their whole audience.
What do substantive comments look like?
The added fact: post says hiring is slow, your comment: "Matches what we see, with one twist: offer to acceptance time actually improved this quarter, the delay moved upstream to first interviews." The respectful counter: "Agree on remote widening pools, though in our placements the counter offers got fiercer too, distance made loyalty cheaper both ways." The sharpening question: "Does this hold for sub 50 person companies, or mostly at scale?" The experience stamp: "We placed three roles into exactly this situation last quarter, and the pattern held every time." Each pattern requires knowing the market, which is the point: the comment is a free sample of your judgment.
Where does the material come from every week?
The same signal streams feeding your outreach. The Industry Insight module inside SDR GROW surfaces the market shifts and numbers that turn "great post" into "matches our data, with one exception worth knowing." The LinkedIn Spy module surfaces which prospect and leader posts are gathering the audience worth commenting in front of. Drafting help is fine, but comments are the one touch where the final words should pass through your own head, because a fake sounding comment costs more than no comment: it marks you as engagement farming in front of the exact people you are warming.
How do comments fit the sequence?
As the mid warming touches: after connection, before the pitch, one or two substantive comments across two weeks. And beyond any one sequence, a commenting habit in your niche compounds independently: hiring managers who have watched you add value under their peers' posts for a month receive your eventual email as a known intelligent voice. It is the slowest touch and the deepest one.
Checklist: comment quality bar
- Contains something the post did not: fact, counter, question or experience.
- Could not be pasted under a different post unchanged.
- Two to four sentences. Essays belong in your own posts.
- Zero pitching, zero links, zero "DM me."
- Written or final edited by a human.
Example
Prospect posts about a nightmare quarter of engineering hiring. Comment A: "Great insights! Hiring is definitely tough right now." Invisible. Comment B: "The pattern we saw across eleven similar searches this quarter: the candidates existed, but response windows shrank to about 48 hours before counters landed. Speed became the whole game." The prospect replied to B, then visited the profile, then accepted the pending connection request that had sat for a week. One comment moved three touches forward.
Mistakes to avoid
- Applause comments. They read as automation because they usually are.
- Commenting on everything a prospect posts. Presence, not shadowing.
- Hijacking with a pitch. The fastest route from warm to blocked.
- Auto posting AI comments unreviewed. One hallucinated "fact" in your niche undoes months.
FAQ
How many comments per week is right??
Three to five substantive ones across your prospect and leader list beats daily filler.
Should I comment on competitor posts??
On industry leaders, yes, their audience is your market. On direct rivals, sparingly and generously. Sniping reads as small.
Do comments really get seen by more than the poster??
Comments surface posts into your network's feeds and sit publicly under high traffic posts. You are writing for the room, not just the author.
Related reading
- How to Warm Up a Prospect Before You Pitch
- How Can Recruiters Build LinkedIn Visibility Without Posting Every Day?
Ready to build predictable pipeline for your agency?
Book a Strategy Call →