Regarding Good Ol' Scammy Charlie Brown, I don't think he knows any more than we do about the exact reason he was banned.
I posted the e-mail he got from YouTube (which I got from his Facebook).
YouTube are basically assholes. They tell you the absolute minimum, whether you're the channel owner or the reporter of violating content. This is even true if it's done via their legal department. They give a very general reason the video or channel was removed, and nothing more. If you ask them for clarification, they won't tell you. If you report something and they won't take action (again, even through their legal department), they won't tell you anything regarding the reason they are refusing to enforce their own rules.
Therefore, Chrissy has the same info we saw -- basically the category his channel violated, and that it was for "severe or repeated violations", rather than a third strike. That's it. He said that Stacy appealed it for him (because he's probably incapable of writing up a decent appeal without getting emotional), but all they're going to get back is "APPROVED" or "DENIED". They likely haven't answered yet, as Chrissy probably would have posted a video about it being denied, and clearly it hasn't been approved because his channel is still down.
The Carlos Maza versus Steven Crowder thing on YouTube was really interesting, even if you don't care about either of these two guys. It really shone a light on a lot of YouTube's attitdues and their secrecy/standoffishness regarding strikes and rule enforcement. Basically both sides were given very little info, told to eat shit, and both walked away unhappy. These were both major YouTube personalities, too. Now imagine how YouTube treats the rest of us, who are all nobodies to them.
The truth was that Maza and Crowder both had good points. Indeed Crowder was violating YouTube rules with some of the language he used about Maza, but at the same time, Crowder was continuously frustrated as YouTube would never clarify for him what was or wasn't allowed on the platform. In fact, Crowder's lawyer (who was a part owner of the show at the time) kept writing to YouTube, and they basically wouldn't tell him anything regarding the expectations of the channel. Eventually Crowder got demonetized, but they refused to take any other action against him.