What makes a good LinkedIn comment
A good comment adds something. A reason the point is true, a case where it isn’t, or what it looked like when you tried it. Two or three sentences is plenty.
Tip: Never open with “Great post” or “Thanks for sharing”. The author has read that a hundred times today. Open with the point.
Questions work really well, because the author replies, and every reply pushes the thread back up in other people’s feeds.