In itself, gold is not a good investment. Gold works well in a pair of shares of US companies. When the shares fall, the gold rises. I suppose that in the near future gold will be slightly replaced by cryptocurrencies. But not completely.
All these bankers have long been investing in bitcoin unofficially. Only they do not talk about it. Who else but they understand the financial bubbles and make money on this? Although bitcoin can not be called a bubble.
All these prohibitions on the part of search engines and Facebook work in full only in the US and several other countries. In most countries, there are no such prohibitions. This motivates cryptocurrency projects to come up with new methods to promote their projects.