Kicksome, sounds like a really fun guy to piss off. Basically you can just act like you dont care and say he is way too much into the game.
Tell him its really important that he keeps playing and and let him know how proud his kids will be of their leet father that talks trash about others on the internet.
Their behavior is both stupid and embarrassing and such bullies deserve being made fun of.

My ONLY complaint with the games I play is whiners that swear and ruin a good time for others with their bad tempers. I adapted to this and have now almost cone to like whiners