It's probably a combination of things; some people get tired of the site and some of the 'stuff' that goes on, some people get all caught up in new endeavors, and some people just get busy and involved in their real lives. Sometimes it's good to take a break, them come back refreshed.
I do have a question, though; how the heck do you unsubscribe to a thread on this new format???
Edited by Kansaseq - 3/15/12 at 7:58pm