Well, i just now started to play Zdaemon again. I haven't played it in awhile, n therefor, i don't have any friends over there, as i do on skulltag. But i know for a fact, that i don't delete others. I never really do use the ZRC window whateva that is.
Anyhow, its like every now n then, a buddies will just disappear. N yes i do keep up with there name changes or try to anyhow. I have bout 30 or so friends on my ide buddies list right now..