He went on a banning spree when he was a mod. Maybe back in 2010 or 2011. Then he got temp banned for that, subsequently used another member as his proxy to convey insults to mods and others, and then was permabanned for that.

It was like a huge nuclear meltdown.

The crazy banning spree was in 2009. I don't think he was banned for it, but he stepped down as mod. After that, he spent two years flipping out on a regular basis and getting longer and longer bans for it until being perma-banned in 2011.