A valid opinion, but I honestly don't think people care, as long as the data is accurate and I have the ability to make myself understood.
And there is lies the problem; until you are a well practised and know the subject inside out you don't know if it is accurate. But the people 'learning' from you also don't know if you are right or not, they just assume you are, so if you don't know the subject well then you are going to teach bad things and, frankly, the internet has enough bad information on it as it is and doesn't need more 'noobs' (to use the word from your signature) putting out more information they don't fully understand.
By your logic, Bucky Roberts @ thenewboston should've never started teaching his now 565 465 Youtube subscribers, because he wasn't much of an authority when he started out. He even dropped out of college. And Mark Zuckerberg invented Facebook, so authority hardly factors into it.
I'd never heard of that site before, so I went to check it out and had a look at his second C++ video explaining hello world and, honestly, based on getting 6mins into that video there is probably good cause for him not to have been trying to teach C++.... by 8mins in it was no better... by 9mins, oh god... I mean... oh god... '[main] should always have return 0', 'if you added text here [to cause an error] then it will never make it to [the return statement] so it will never return 0'... I mean, seriously... ugh.
And we aren't talking a small nit picking mistake there either; he fundamentally gets the C++ compilation model utterly wrong.. and not for the first time either... hell, don't get me started on 'all programs must have a main function' and 'your computer automatically knows to start at main' which is just wrong. (Yes, you can avoid the complications of how the OS and runtime do it but not by making statements of absolute truths like that!)
So, yeah, he probably shouldn't be teaching people C++ at least - and just because he has a large number of subscribers doesn't mean he is right, it just means he has a large number of subscribers.
And college has nothing to do with it; I wrote a series of articles for this site back in 2005 or 2006 for OpenGL and the only reason I did it is because I had a very strong background in the subject. At that point I hadn't completed university and didn't have a degree. Same goes for the chapter I wrote on the GLSL many years back.
Zuckerberg has nothing to do with it either; he made a website, he wasn't trying to teach people how to make a Facebook like website.
A lot of people, if they see two possible sources, will obviously adhere better to the source with the greater authority. That's just human nature. We don't always have the time or resources to learn who or what is truly the more credibly source, so we take a calculated risk.
Unfortunately that isn't the case; people see two sources they will take the one which looks easiest or quickest to learn from and go with that.
Given the choice between a correct book and a video which claims to be correct most people will, these days, more than likely take the video.
Of course if the internet wasn't full of incorrect tutorials we wouldn't have this problem but apparently its full of people who think "I've been coding for 20mins I must teach others so I can learn too!" which is just... ugh...