Besides the woman that Savage mentioned, there was also the 'big 5 bannings' which Pseudo made, causing quite a bit of controversy. This only added to his feeling that he's a victim, despite banning five active members of the community without any hint of an explanation.

Besides that, there's also the attacks on ST, the DDoS attacks on FH (which lead to the DUUUHpocalyse), and his general university life which he finds too stressful because of the amount of human interaction it entails.

There's probably other things, though, which only the secretive group of friends Pseudo has on ST know about.