People keep saying this, I have yet to find any proof of these claims.
I have a hell of a time learning from this website. Idk how you guys did it.
Then, at present, the field is not for you, my friend!
No hard feelings...
Still need to find more info on SEO basics on BHW? Here it is: Google:
site:blackhatworld.com youtube ranking
site:blackhatworld.com seo basics
Re.: Youtube related SEO (basics, etc.):
site:blackhatworld.com youtube seo basics
So, what's so hard about finding topics on BHW?

You need to first learn the basics about "searching"! Would seem too harsh but that's the reality.... then probe deeper into the more advanced (comparatively) topics like SEO.
When our "people" make those claims, your job is to think about it, find it, learn it, experiment on it, master it... not simply brush it aside as if they (those "people") are supposed to give you an extended index on where to find what they said...
So next time, don't use such sweeping statements about BHW, the knowledge contained in it, and about the "people" who have done a lot better and then only made those great comments on any given topic. HTH
And we need not provide you those proofs! lol. It's up to you to explore and find, because the do exist here!
Of course, you'd need to find and learn those topics selectively, then apply the methods in a special way to find the solutions specific to your problems. There is, in deed, always A Way!
Once you have done that, but feel the need to get expert advice, we have those experts too to help you. But they need for you at least is to explore first...
.
So, as I said earlier --- No hard feelings
There is a proper way to everything, including learning!