Another forum of which I am a member has a thread like this. Essentially, whenever you change your avatar or signature and want to tell people about it, you can announce it in here for commentary; title and location changes would probably be open for discussion, as well. Plus, hopefully, it'll draw the avatar/signature posts out of the PAM threads and open them up to more interesting conversation...
Me, I changed my avatar to a wicked-cool video game character, and tweaked my signature a bit for extra color. It's also been changed so that my current avatar will be in bold (so I don't have to explain). In addition, my subtitle, location, and occupation all change accordingly whenever I change avatars.
Oh, and a disclaimer: I profoundly apologize if there's a thread like this deep within the recesses of the Forums, but I haven't seen one.