I don't know, but prolly something to do with the site migration, looks like your post count went down. I really don't pay attention to things like post counts and titles, but it seems like you were higher, yes, no? No idea what my count was or has been, so nothing to compare it with. John put a post up in Notices that there could be some wacky things happening and if it seems important post a note on that thread. As this stuff is very typical in site migration I wouldn't worry about it.
All very off topic one would think for the OP, but a good notice for him on what's going on around here very soon.