Me - My Guess for the hat is "Cleanup (delete) a number of previous comments that are useful i.e. those comments that are on posts which were edited after the comment has been posted"
Pops - You're on the right track, but you're being very vague. Fill in some of the details?
Me - Do you want the exact number? It is 40
Pops - The number of comments would be nice, but I really meant the other details. What can you tell me about the posts?
Me - The post must not be your own post and must be edited by the post owner.