Not sure about long, but I'd think for an individual thread to count for AC, a total of seven comments from a given character (not including icon-combo threads) should hit the "accepted for proof of activity" minimum threshold on average. This means a thread fourteen comments long!
Looking at community averages, I'd say about three threads of seven comments each should be equivalent to a post. That'd be similar to having at least three people respond to a post you make, then threading with each one of them for seven comments from you (fourteen comments in total), which makes for a post with the equivalent of forty-two (42) comments. This is at times more than one post can even see!
no subject
Looking at community averages, I'd say about three threads of seven comments each should be equivalent to a post. That'd be similar to having at least three people respond to a post you make, then threading with each one of them for seven comments from you (fourteen comments in total), which makes for a post with the equivalent of forty-two (42) comments. This is at times more than one post can even see!