I'm pretty sure this has been suggested before, but it would be nice if there was a way to hide the authorship of a submission to regular users. Perhaps you want it to be a surprise, perhaps you don't want it tied to your name, perhaps for some kind of contest or battle with anonymous voting. Whatever reason you have, I think the option of anonymity is better than psuedo-anonymity through nicknames (remember reregging isn't allowed).
You can in fact anonymize your name from the submission by asking a team leader. This thread from Announcements explains it better.
Windowless ride, feeling alive
Are you alive or just breathing?