I can't find it right now, but the Financial Times ran an article a few months ago about how YouTube is the world's most useful website, period, because it has everything imaginable: Not just entertainment, but also educational content. In a real sense, YouTube is the planet's #1 teacher.
It's also the #1 bad teacher, a lot of outdated or plain wrong information abounds. And of course its major role in getting people hooked into psychologically damaging vices, "toddler surprise gift unwrapping" videos for children among many many others.
Yeah, good point. The information is scattershot unless the content makers make their content curated.
As far as outdated information goes, especially for programming knowledge, I could make the same case for college and university. Even worse in their case.
