It's all about links. And when some
SEO gurus talk about "quality" they make me laugh. Just ask Wonderpunter too: all top positions on major keywords on our industry are full of "toptenofthetopten" sites-like with thousands (k) of backlinks coming from comments platforms, paid platforms and interlinked each other. Same/very similar content.
The ones who "quack" about "you can recover without a refresh" or "negative
seo doesn't work" etc., etc., etc... have no clue on what an algorithm is. They think it's something "solid" or "liquid" filling the Google's pages...
The last time i tried one of this "guru" I was fairly shocked: he sent me some of his works with proofs... 10 keywords, 10 sites all on top. The problem was that each keyword had a "10 searchers per month" of traffic volume... geek! He was asking for $5k per month. I just said: .|..
And... ahah... I'm tracking a site on G that is always on top: before the first Penguin release it was a ".com". Penguin released, site trashed. After Oct '14... welcome back! But now it's a ".co" (it lost a "m") with exactly the same backlinks with keyword rich anchor text coming from the same places... from Oct '14 till now always on top for many, many keywords it means only one thing: money.
Eh, guys... Quality matters.
I would change the title of this thread: "Is spammmmm even possible? Of course. Delete and redo"