Donna's in the ball park, but I'm not suggesting someone create a membership to disguise who they are. What I'm suggesting is, in creating the new membership, something like affixing a couple of letters to a regular forum name to indicate something less . . . formal. BeautyAH, SharonSR, ShannonOTR (After Hours, Sans Regalia, Off The Record, respectively), for examples. The avatars, sigs, and so forth could be the same (maybe), but perhaps the title would be different:
Site Administrator could become
Sapphire Goddess (or however that system allots titles), etc.
I guess the basic idea here is that of wearing the uniform when you need it and taking it off when you don't.
-Celia