https://coincodex.com/article/1404/is-twitter-the-next-platform-to-ban-cryptocurrency-ads/
I personally think that this is just a phase until they learn to filter out scams which is good. There's way too much scams going on, I see a lot of ads where you can see that it's an obvious scam (like get 200% Gain Daily, earn 0.1 BTC daily or whatever). Crypto will have the more healthy environment.
i do not think Twitter will do this. Twitter is already facing issues related to profitability and it does not look in a position to cut down on big advertisers. We will have to wait for a official response from Twitter regarding this to get a clear picture.