PS - what was the name of that girl in the parking lot in Individual Responsibility? The one who spells her name with an "i", not a "y" because she didn't want to be cliche? I love that scene!
That was Tiffani.
As for me, I use a nickname on the boards, archive, mailing list and all... and I actually use my nickname on IRC as well, although everyone knows my real first name there and calls me that.
When I first joined the fandom, I used Kaethel as a log-in name but didn't mind giving out my real name. Then as things progressed I realised no-one was thinking of me as Kaethel any more, and since I kind of like my nick, I started signing my boards and list posts as Kaethel. Since all my fanfics on the archive are under the name Kaethel, and people not actively involved in the fandom would have no idea that I have another name, then I asked everyone on the boards/list etc to call me Kae, so that no-one gets confused when seeing my nick on the archive.

The only place where people still call me by my real name is IRC. Oh, and real life of course.
Kaethel

(who isn't entirely sure her post makes sense, so in a nutshell, it's Kae on the boards and list, and you can choose between Kae and my real name everywhere else

)