Cynical as I am, I really think there's not much you could do with a webcomic about the site. Disregarding the fact that you'll offend anyone who isn't included, the dramas and inside-jokes aren't really enough to last more than a few strips before you have to start extrapolating and just making stuff up, which would really just turn it into another generic comic nobody cares about.

(That, and the last artist's interpretation of myself was a sea otter with a pizza for a head with a giant brain tacked on.)