Pay no attention
It goes back a long time but the essence is, Bowser and I detest each other for what we perceive the other stands for.
He sees me as brutish and insensitive lout and I see him as a weak ineffectual crank with no concept of truth, honor or courage.
It galls him no end that I am a moderator and after several months of ignoring his gigs, I decided to stop ignoring his crap on this board only.