So, as it turns out, Epost has Aspergers Syndrome, which basically means he can't take a joke.
No, seriously, he literally can not tell the difference between a joke and an actual insult.
I told him to just kick people he thought are insulting him, and leave banning to admins who aren't hindered by aspergers.
Fun Fact: "Aspergers" isn't in google chromes spell check dictionary.