I did it once, a few years ago, maintained it for a few shaves, and stopped for some reason. I don't remember why though.
I tried to grow my hair out. It formed an impressive afro, but after it got long enough to begin drooping it was pretty much impossible to maintain as it was far too thick and tangled no matter what I did to it.
I remembered how I fairly liked being bald, so I had barber buzz it, then went home and shaved. Several shaves later I'm used to the procedure again and miscellaneous bumps have stopped bleeding all over me every time I shave over them. Lovely.
The result:
http://jack.is/visual/jack/bald.jpgI believe that's my Eff-Off-I-Just-Got-Off-Work face.
Now resuming lurking.