Comment quality is one of the strongest signals LinkedIn uses to decide how widely to distribute a post. A long, thoughtful comment from a credible account contributes more to reach than a one-word "Great post!" from a stranger. The platform looks at both length and substance: comments under five words contribute little; comments that engage with the post's actual argument and continue the conversation contribute much more. This is why posts that prompt genuine discussion outperform posts that prompt cheap reactions. Writers who reply to early comments substantively keep the conversation alive and signal to the algorithm that the post is conversation-worthy, which drives further distribution.
Examples
- A 50-word comment disagreeing with a post's argument carries more signal than 20 likes.
- A reply from the writer that adds a new angle restarts the conversation and extends reach.
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Frequently asked questions
Related terms
Social proof
Visible evidence on a post that other people found it worthwhile: reactions, comments, shares, and who specifically engaged.
Engagement rate
Engagements (reactions, comments, shares) divided by impressions, expressed as a percentage. A post-quality metric.
LinkedIn algorithm
The ranking system LinkedIn uses to decide which posts appear in which users' feeds.
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