Some more active threads end up with replies from numerous mods simply because whomever sees the latest question first, and knows the answer, posts a reply. I may not reply to another thread simply because I believe the reply already posted is adequate to satisfy the request or I may not know the answer. But I wouldn't say we "hang out" in any thread, a forum is not "live" like a chat server where people "hang out" in certain rooms and you get an instant reply. In a forum we periodically look at the "latest posts" list and help with the questions we can. We can also "subscribe to a thread" (so can you), in which case we get emails when a new post gets added to an existing thread. I am still "subscribed to this thread" because it is popular by many visitors and it was that email notification, triggered by your post, that brought me here to reply, not because, as you put it, I "hang out" here.
