Evolved pretty much said what an admin should be like. I agree with Joker on Cyber's view... being an admin for X amount of time doesn't entitle you to be Y amount of a jackass to players. You're there to keep it fun for everyone, not to be a stuck up prick because you've been around for so long and no one can touch you. Same for new admins - paying $11 doesn't make you "better" than anyone else. The standard of a good admin doesn't change based on length of service. Longer service merely provides more insight into what type of admin a person is.

People give me crap in game all the time and I just give it right back. 99% of banter in CS is harmless and generally meant in fun, or on occasion meant to troll (in which case, you simply don't respond the way the troll wants and the problem goes away). I think a lot of the new admins get in trouble because they're immature and don't understand how to handle harmless insults, but then again, that could be said for certain long-timers as well.