I think he managed some clues over on the 'So why...' thread, and then, there's this.

Personally, I think there are always assholes and nazies and sad people who can't leave their houses for whatever reason and live on the internet, getting their kicks out of making other people miserable. Can't make all of them disappear, but imagining such a person sure makes them seem about as annoying as a rash. At least on the internet.

'Dave D' - just a bit too close, no?.