OMG, reading my old thread on the global effect I see that Xanadu is in fact Snowman from GG, and Dr Sir AA from another forum. He goes by several other names elsewhere too. Snowman is the destroyer of Gambler's Glen.
Cage that deplorable and keep him locked up. He has one obnoxious opinion that always runs and hides from real debate or contribution, no matter what forum he is on. He doesn't really want proof. He wants to Troll.
"In Xanadu did Kubla Khan
A stately pleasure-dome decree:
Where Alph, the sacred river, ran
Through caverns measureless to man
Down to a sunless sea."
Such is the beginning to a wonderful poem by Coleridge.
You probably meant Xander, the author of a sunless sea of often derogatory and divisive one-liners.
Interesting info you provided about his/her/its various noms de plumes.
Yes, the troll is caged and contained for now.
But should it show up under yet another false flag it will soon give itself away by its behaviour as you so accurately describe, and draw unto itself hot coals of consequence.
Rinse and repeat...rinse and repeat...
As Hank Williams puts it: "Life gets tee-jus don't it?"