One thing Classic chat has taught me

[Ronduwil-pagle]

Right Click their name → Report → Language

Then type in:

Sexually explicit language has no place in public chat. Kids are playing this game!

Problem solved. And before you say that Blizzard just ignores this:

@Vrakthris

To be clear, there is no mass report = ban system, you were reported, certainly, but that generated a review of your name, which was found to be inappropriate.

You are welcome to appeal by submitting an appeal ticket , though I would recommend selecting a new name upon next log in.