For the 3 children who cannot have a civilized conversation with each other about anything ever:
If you were my 7th graders, I would move you to opposite ends of the classroom and schedule a meeting with the school counselor to talk about the importance of remaining civil in polite society. As it is, you are grown men, so that's not an option. I suggest a similar solution though- don't participate in threads that the other one is already active in.
As for this thread, the question has been answered, so I'm closing it.