I've NEVER seen Mark mad enough at this game to EVER PM someone. As Mark addressed a few of us at SHawk's, the 200 comments are out of frustration. Not directed at anyone but himself. I've always assumed this and he reinforced it. Mark is passionate "about living the fight". If someone pulls a lame move, he'll be slighty pissed at the person, but MORE SO at himself for giving them the opportunity to take him down.
Bottom line, you guys keep trying "to figure out Mark", but you're thinking too much.