This is more of a question about the site itself, so I'm not sure if this is the right place, but why do posts get deleted? I'm pretty sure that only a few days ago I had 3000+ posts.
Almost everyone's post count went down a few days ago. I'm assuming that one of the more popular subforums or stickied threads was changed to "posts do not count towards postcount". No idea which one it was, though.