He actually cares enough to be bothered by idiots. He doesn't post to get attention. I think it's a form of trying to give back to the gambling community (which indirectly sponsors lifestyle), kind of like Dwayne Wade's foundation that pays for Miami's poor kid's artistic education etc.
He doesn't have to post. Noone has. But for him it actually matters if people misunderstand him and post stupid shit in his thread.