Maybe it’s because I haven’t really used YouTube much, but there seem to be very few content producers that deliver content which is based on any form of scientific methodology or even any form of real journalism.
I can quickly find a ton of “documentaries” on Ancient Rome for instance, and I have watched quite a few. I happen to have made the rare mix of CS and history when I took my original candidate degree at the university of Aarhus, and I specialized in Ancient Rome. I’ve yet to see anything on YouTube on Ancient Rome, that wasn’t amateurish at best unless it came from somewhere else, like the BBC.
I think that is the best way to put it. YouTube just doesn’t seem like a good place for production of knowledge, and as much as I enjoy watching a guy build a clay cabin from the ground up with his bare hands, I’d frankly rather read a book.