I do not disable the chat feature.
I will either write hello and good luck when playing somebody. If they respond they respond if they don't they don't. I understand that some people like to concentrate and not chat, which is totally down to the player and not anti-social at all. If I haven't written hello and good luck, then I will certainly write good game, well played, whether I have won or lost.
If a member was being rude to me, I would enjoy beating them, then report them or if I was going to lose, report them before the game is lost :-)
As long as the opponent is good , i will not disable the chat.