Oh, and a bit related to RBI - the Pwayerz Metaklan[tm].
In old times (when the menu didn't reject people joining as "Player"), my server had an unique feature - it automatically renamed everyone who joined as "Player" to some silly names. Some of these names were kept by the "Pwayerz" for more than some weeks, and those ended up on this website:
http://www.geocities.com/rbiclan/pwayerz/
Some of the "subclans":
[HTF]: Happy Tree Friends. They violently die in every single game...
[SPQR]: Names from Life Of Brian
-ko: Includes De-ko (doesn't shoot, just decoration), Scho-ko (German for chocolate), El-ko (German short word for electrolyte capacitor) and Psi-ko (pronounce: Psycho), but of course not Ey-ko, Bee-ko and Shee-ko (too meaningless).
Chucky Words: Babidldididldiboingboing, Kapoingdidoing, doink
Just Weird: Rosa Wattebaellchen, Agressives Eichhörnchen (that one actually made it into a server name) etc.
[d2]: German Diablo 2 names (like "Schleimer Faulhund")
[sk]: Staplerfahrer Klaus names: Halbierter Herbert, Kettensägen-Rudi etc.
[DBIS]: Datenbank- und Informationssysteme (names like Sgt. Fault, Gen. Error, Mem O'Ryleak, Dangling P. Ointer)
Miscellanous Stuff: I joined hector and all I got was this lousy nickname