I have no problem with people reporting inappropriately abusive language, but I suggest that you first let the person know that he/she has stepped over the line - I'd bet a reasonable person will apologize. Sometimes we slip up, and we we know we made a mistake. Others may live in an atmosphere where "relaxed" language is commonplace and accepted. I'd hate to have someone banned unnecessarily. However, for those who refuse to get it, a visit to the principle's office is warranted.
Since I've been back, only once has somebody b.t.hed at me - for a collision. He PM'ed me with some poo, but I replied from my perspective, I flew over him and he pulled up into me. He shut up. Curious that it was one of the very few times where my opponent died as a result of a collision and I got the kill - go figure.