This type of behavior should be frowned upon by all, bad day, wrong time, doesn't matter. if it is even your own squad mate doing crap like this your other squad members should tell him to knock it off, chill, log and take a breathe.
I am no angel nd during the heat of battle I'll slip and say a cuss word over vox, and then I immediately apologize once I catch myself.
I have also noticed the filter being off in some of the arenas, don't recal which ones, but have sen some fouled up language typed out.
The best thing to come out of this is for the person in question to come in here and apologized publicly, and let it be done/ settled....