Well...I think that having a general birthday thread versus a birthday [name] thread defeats the purpose. You're supposed to feel special on your birthday and making a general thread doesn't accomplish that. I'm just glad you create a thread for known members and not everybody. Else that would be a bitch to sift through.
Yeah, most of the members that appear at the bottom on a certain day are either deadbeat, spammers, banned, or I just don't like them enough to make a thread.