All I have to say about WisCon's insult to Elizabeth Moon is: who the hell is Nisi Shawl? I'm not even a particular fan of Moon's - she's written some fantasy novels I appreciated, and Phases was a pretty good short story collection, but most of her recent work hasn't impressed me at all, and the essay that earned her this betrayal wasn't even particularly hard-knuckled or interesting - a standard, vanilla, rote recitation of liberal melting-pot commonplaces, really.
Pile this on top of the Juan Williams firing and it's shaping up to be a spectacularly self-destructive week for the PC left.
Update, next day: Oo-okay. Maybe they did Moon a favor by disinviting her, although if she voluntarily goes to these things, perhaps that sort of ugly is her cup of tea. h/t Brickmuppet.