Yeah, wanted to comment exactly that. You could literally watch him become crazier with every upload. At first I did overlook the odd comment, but he eventually went full nutjob and I had to unsubscribe.
Yeahhhhhh, I used to recommend his channel to young engineers and techs because of how thorough he was at explaining the how and why of mechanisms. I don't anymore which is a shame because he was knowledgeable.