Apparently, he's retired quite suddenly. Gave up the tools and took off.
http://en.wikipedia.org/w/index.php?title=User_talk:AGK&diff=prev&oldid=260426882
Sometimes, people just have had enough. I had no problems with him, so I wish him luck.
Jimbonic Jackboot Juggernaut
A year ago, when I sought to ask ArbCom whether I had been afforded Due Process by Paul Mitchell, Tracy Walker, and the other jackbooted goons from IDCab, it was AGK who proxied my submission to ArbCom.
ArbCom declined to answer the question of whether the RfC was a normative instance of Due Process (and not a routine instance of a http://moultonlava.blogspot.com/search?q=English+Wiki+RfC). But the episode, while eminently forgettable, as http://newscafe.ansci.usu.edu/~bkort/FloNight.IRC.html, might have been one datum in AGK's decision to abandon the Puerile Pogrom Parade that Wikipedia has since revealed itself to be.
I thought that AGK guy seemed quite a decent character - And even wrote as much last month:
http://wikipediareview.com/index.php?showtopic=21362&st=220&p=146510entry146510
AGK is good people.