It's just their incentive structure which is different than that of the Apollo program footage uploader.
YouTube has very advanced image & voice recognition technology that is very efficient at flagging (and demonetizing) certain content merely based on trigger words (terrible for science channels that show fire/explosions/etc even though there is no violence involved).
If crypto is such a popular target, maybe introduce an extra verification step (that requires uploading ID/etc) to whitelist channels for crypto-related content, and any other channels that have not done the verification (because they don't plan to upload crypto content) can't upload anything that matches those words? This would at least prevent non-crypto-related channels from being hacked and suddenly starting a crypto scam livestream.
The reason it's not done of course is because Google bears no liability (despite promoting these scams in the "recommended" section) and the scammers & victims still generate "engagement" and watch ads.
Or perhaps the technology isn't that advanced, and cryptocurrency scammers have stronger incentives to work around it than legitimate channels?
Nevertheless, Google banned us from AdWords/Adsense: we could not advertise our services even if people searched for the company name. The list of banned businesses was: porn, drug,guns and us... that's how "low" was the stance of the business we were doing.
Ff to this day it seems The Goog has seen good money in this vertical , so that it turns a blind eye to fraud.