Via just about everybody (Darth Swank, Modulatin' Steve, Kevin Drum), I see that Atrios is no longer anonymous. He's a guy named Duncan.
So I guess this puts to bed all those Sidney Blumenthal rumors of a while back. And while it's pretty cool to see the face behind the Eschatonic greatness, part of me is slightly disappointed: it's as if the "Who Shot JR?" episode of Dallas had revealed that the assassin was merely a night watchman whose gun accidentally discharged.
Anyway, I wonder if PZ Myers thinks that Atrios/Duncan looks like an axe murderer....
(As of this writing, Atrios himself has yet to say anything at all about being "outed", as far as I can see. Hmmmmmm.)