Borrowed audiences beat owned ones
Ten thoughtful comments on posts from people with the audience you want will usually out-perform an eleventh post of your own. You're renting attention that took someone else years to build, and it costs you a paragraph.
Comment where decisions get made
Filter for seniority, not follower count. A post from a VP or Head of with forty comments is a better room than a creator post with four hundred — the people reading it can actually buy.
Add a fact, not a compliment
"Great post" is invisible. The comments that earn profile clicks add one specific thing the original post left out: a number, a counter-example, a caveat from your own work. Two or three sentences is plenty.
Cap it, and spread it
Five to fifteen comments a day, no more than a couple under any one person. Beyond that you start reading as a reply-guy, and the returns flatten anyway.
Make it a queue, not a scroll
The failure mode is opening LinkedIn to comment and losing forty minutes to the feed. Auto-Post finds fresh decision-maker posts on your topics, drafts a comment for each, and hands you a queue to approve — try it free.