My thoughts: yeah, it's pretty annoying; not all pros and masters do it; all you can do is weed through the quitters till you find some reliable players and add them to your friends list. If a hack or amateur gets the better of me, it means I'm not playing well, he or she is having a great game, or some of both. I'm no quitter; I'll take that beating and hopefully learn from it.
Best of luck, and Merry Christmas!