"However, I respect Greg's decision to allow anonymous posts, in part because anyone who wants to hide his real identity could post under any pseudonym and we wouldn't know the difference anyway. "

I don't think that this is true. That is the reason that every posting has your "real" return address on it (after your e-mail address)so you can be tracked down if needed. Greg did this several months ago to hinder anonymous postings and imposters.