Mugshot of Paul Addis from the Pershing County Sheriff's Office
See the comments below to read Paul Addis's exclusive statement to the Guardian
Well, according to Laughinsquid  and a commenter on sfgate , the alleged arsonist, Paul Addis, recently performed a one-man play about Hunter Thompson called "Gonzo." And apparently he's not too thrilled with the people who run Burning Man.
If that's true, then his fiery act would be a very Gonzo thing to do. 
Steve Jones, calling by satellite phone, says there were weird signs at the Burning Man entrance saying "what if they burned him Tuesday?"
I have to say: Charging this guy with arson, which carries a hefty prison sentencce, for burning something that was going to be burned in a few days anyway is kind of harsh.
Paul Addis as HS Thompson (photo: Scott Beale/Laughing Squid)