From our DMs when going over his info
The Degen Thread is what really fucked him up. He ate a ban early in a month and he posted about the same amount that month compared to the previous month because he was just sperging like crazy in there. He was the sideshow attraction where we would all notice Nolan being a retard and then Nolan would burst in to argue his side. When he argued in the past about vtuber stuff, he could bow out by saying "oh I see" or "I didn't know all the info". The problem is that his actions are the whole point of the argument and he's incapable of accepting guilt for his own actions, so he can't bow out. So he just continues to wind himself up. You can notice him growing increasingly deranged and antagonistic to the people in that thread as it went on.
Yeah, his therapy session is pretty much the final nail in the coffin on the question of whether he's fixable.