Re: One should really refrain from ...
Can't say I agree.
I fully admit that there's a whole lot of garbage and hokum on YouTube, but at the same time I've learned an awful lot about general science, astrophysics, history, DIY, carpentry, electrics, car mechanics etc from YouTube. There are some content creators out there who really do put a lot of effort into making sure what they publish is accurate.
I'm in the middle of a van conversion which, frankly, I likely wouldn't have been able to perform without YouTube pointing me in the right direction (backed up by further research, of course).