Basically he decided it was a good idea to admit in public that he wanted to rape children (not just have sex with them in the standard pedo 'ooouuuh they can consent to sex!' excuse way, he wanted to
rape them, by his own explicit admission), and then drew comics of himself raping them. He said he fantasized about children finding and masturbating to his porn, among other gross and execution-worthy comments. As far as I'm aware he vanished for a while and then came back claiming it was all just 'POCD' and that he had been 'gaslit into believing he was a paedophile' by harassers, and was cured after some unspecified psychiatric counselling. His defenders took his words at face value, with zero proof. Here's some of the shit he posted.
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I also (eugh) have screencaps of the drawings he posted, which I will not sully the forum with. They are floating around on twitter though if you want to verify them yourself. It's utterly vile stuff. Just thinking about it enrages me.