I just wanted to chime in and say I think he is knowledgeable; he's not a con. I know you didn't say that, but people might have the impression he doesn't know what he's talking about. He does know, and I've learned quite a lot from him in the past.
However, since the LLM Cambria explosion, he has become very clickbaity, and his content has become shallow. I don't watch his videos anymore.
Not that I ever had confidence in his technical knowledge, but it went to zero when he confidently asserted that there was no possible way a single server could handle the massive traffic some NextJS app he had made was serving. He then posted the bill - which was about $5K IIRC - and I was able to determine from the billed runtime and memory that a modestly-spec’d RPi could in fact handle it.
He's about as knowledgeable as the junior you hired last week, except that he speaks from a position of authority and gets retweeted by the entire JS slop sphere. He's LinkedIn slop for Gen Z.
However, since the LLM Cambria explosion, he has become very clickbaity, and his content has become shallow. I don't watch his videos anymore.