His name is Mike Stark. He runs the website www.callingallwingnuts.com and is a regular contributor to Daily Kos. He said on his website a while ago that he was trying to "Roger and Me" George Allen.
I think he's just a rabble-rouser.
A little more about Mike Stark, admittedly from a leftist:
http://www.mydd.com/story/2006/10/12/174124/21