Except that most of the time, when these companies announce these bans, they way too vague in terms of scope and enforcement. I think most people can agree that ads for ICO are scammy - but what about to promote a blockchain project? Ads for events related to crypto, even educational ones? Do they count as "Currency exchange, trading, and related services"? There is a huge difference between safeguarding users against scams and suppressing the cryptocurrency ecosystem in general, and its super difficult for outsiders to predict what the ultimate motivation is. Even harder to predict unintended consequences. Twitter, at least, is also banning ads for exchanges and wallets except for public companies listed on major stock markets - which raises it's own set of issues.

Welp - Twitter ban now official https://www.coindesk.com/twitter-will-ban-crypto-ads-starting-tomorrow/

Question is how do you know for sure it's more secure or faster? You can read the whitepaper and do the research, but at some point you will just have to bite the bullet and trust that a blockchain project is doing what they are promising.

And with some projects is more than just changing up the username and password. I was looking at this one the other day https://projectpai.com/ and they are talking about using your voice and image to create an avatar. So that is a lot of personal data you could be potentially have floating around on the blockchain.

I think this will be good for the crypto community in the long run. Too many scams are going on and its too easy for people to be scammed by these ads. The ban will force projects to actually talk about the merits of their actual technology, not just ICO, ICO, ICO. In the past it was just too easy for any crap company to push ads and get people to invest.

Sounds like FB and Google and Twitter will still accept ads promoting blockchain projects, just not purely pushing crypto.