This guest thing has been an issue for as long as I've been around here, some saying that we should be a "members only" group while others supporting the rights of anonymity. The key to it all is to ignore any and all flame posts, guest or otherwise. I KNOW it's hard and I KNOW that none of us are capable of avoiding the knee jerk reaction to "post back" every time. But the bottom line is, EVERY post that is intended to hurt, flame, put down, etc., is successful if we respond, even if the response is a joke. Flamers want a reaction, ANY reaction, and if they get it, they've succeeded and will try again. Even mentioning specific posts in this thread feeds the flame.
I'm not posting this to get on anybody's case for responding but rather to say that I understand the temptation, I've responded in the past and I may respond in the future but I will always try NOT to.