I don't like name changes. Kinda. I wanna change my name. But I don't like them because I can never recognize some people.
Since forums allow spaces in usernames, you could get rid of the underscore and make your name Doctor Wiggles, Doctor Wigglz, or something of the sort.
Doctor W. You should tottaly do it.... But I'm actually considering getting my username changed. Its so unoriginal it's not even funny.:\