Admins shouldn't have to waste their time on crap like this. You should find better adjectives to describe people you don't like. Its not even about being offended by the word(s) - its just frankly irritating to see it get slung over chat. The server chat is not your guild's forum or ventrilo server, its akin to a public space and people need to check their attitudes when dealing with others or prepare to be confronted about their shitty attitude.
On the other hand people should be thick skinned and understand the concept of good-natured ribbing. If you take offense to somebody who did not intent harm then YOU are the one at fault. Common sense aint so damn common.