Impressive deep-dive into blackhat seo:
https://recleudo.com/under-googles-watchfull-eye-getting-out-of-a-manual-site-reputation-abuse-penalty-and-continuing-business-as-usual/
https://recleudo.com/under-googles-watchfull-eye-getting-out-of-a-manual-site-reputation-abuse-penalty-and-continuing-business-as-usual/
Comments
"While domain authority outranks all, efforts to combat parasite SEO will just be pushing water uphill. Only the restoration of algorithmic respect for topical authority, eroded since the ‘helpful content’ update, will actually change the landscape."