Quote Originally Posted by Niwashi View Post
If the way you joke around with your friends would sound like real insults to other people, then it shouldn't be done in public chat, where you're likely to offend those other people. Use /tells or a private channel for such things. (Of course, this assumes the offence is blatant enough that the speaker could predict strangers taking offense at it. I don't know if that was the case with whatever the OP saw without knowing what was said.)
Or! You can realize that you don't need to be a white knight and protect people when there's a mute option or a report option for them to defend themselves. Whether it should or should not be done in public chat does not deter from the argument of the person not being harassed and people policing for them when it's not necessary (Or apparently even allowed).