I can almost hear the HelpDesk call, "When I log in to the system, my preferences keep changing back to some funky color scheme." "Is your password 1234?" "Yeah, why?" <hollering to the IT Staff nearby>"WE GOT ANOTHER ONE!!!!"
<sarcasm>I like the idea - or, even better assign everyone a number. It's unique and identifies them. Next!</sarcasm>
(Oh and hello, new to this here posting thangie - WTF Rox)