I found it VERY amusing if you go to r/SEO just yesterday there were moderators and flaired users (you know, the elites of the SEO community, lol) insisting much of this was "debunked" years ago.
They of course deleted their posts, but the threads are still up. What a den of scammers over there.
https://www.reddit.com/r/SEO/comments/1d1eqjj/comment/l5tvfw...
https://www.reddit.com/user/WebLinkr/
I love how reddit is turning into the new SEO scam over night because of this stuff. Great work as always Danny Sullivan!