I have no inside knowledge, but here are two possibilities. On both accounts I know a bit more than the average person. Re: bored / discouraged:

So, he didn't necessarily become ill or get doxxed - he had a normie-ish subset of his site going, after the 'meme' part was down. But of course, aside from the facts I've put up, it's all speculation.

Regardless:

Screencap of Murdoch saying all episodes from Galaxy MM88 on were due to Cheeky. https://archive.4plebs.org/pol/thread/346153189/#346185681

So, it's no exaggeration to say that we owe Cheeky a huge debt of gratitude.