Here is another link https://cointelegraph.com/news/facebook-removes-bitcoin-scam-ads-with-abu-dhabi-crown-prince
in that article it says:
In January 2018, Facebook became the first major social media platform to ban cryptocurrency-related ads. The platform said at the time that it would ban ads that use “misleading or deceptive promotional practices,” while specifically mentioning initial coin offerings and cryptocurrencies.
which is Facebook bullshit, since I seen the ad of Mateschitz endorsement just a couple days ago, plus the pages of these scammers exist unabated since 2017 at least!