Rockstars who pick stupid names and are saddled with them as they become old people:
Flea
The Edge
Bono
Sting
and countless others.
How stupid must you feel to still be being called "the edge".
I think things worked out pretty well for these dudes. Any possible regret that Michael Balzary, Dave Evans, Paul Hewson, and Gordon Sumner have about their stage names is undoubtedly erased when they remember that they're internationally-famous rock stars with $9 billion to jump around in/stuff into their Miatas. Also, those monikers are cooler. There's lots of Gordons in the world. There's one Sting. He should really stop playing his lute in ArchStanton's chemotherapy waiting room, though.
Jay Reatard, however ....