I would be very sorry indeed if that were, indeed, you last post Karl. But I really appreciate how you feel - on any forum that's grown to the size we have, there will be one or two negative individuals who seem to rub you (and perhaps others too) up the wrong way.
You wouldn't refuse to join a train because there's someone you don't get along with already on board, would you? So please don't just walk away from here - at least have a chat with the staff [moderators, admins], who may be able to help if you're feeling uncomfortable. Of course - it could be one of us you're having trouble with