I really like how Jack Dorsey endorsed crypto in the public as the CEO of a leading social platform here on the internet, unlike other platforms that ban crypto in their platform. It's very interesting since it's rare that some popular people really support cryptocurrency because some are still not aware of BTC's potential and are scared to enter crypto. This is another opportunity to make crypto grow and because of that, more people will still invest and pump the prices of all the crypto. Cryptocurrency is very popular on Twitter, it's one of the main communities being used and you can notice that a lot of analyses, airdrops, and ideas about crypto are being tweeted there.
I remember back in the day when I tried to do a marketing on google, they banned the word "ico" for a while, and "initial coin offering" as well, it was really shameful because they could have made so much money and yes there were people who did scammed investors using ICO method, but there were so many great ones as well. Look at the top 50 of the whole crypto world, you will see many that started with the ICO system and they are now worth over north of 10 billion dollars, and for some reason google see it fit to ban something that they did? I do not get why some social medias were against it.
Twitter is the hub of crypto talk, you can see crypto accounts everywhere on twitter not only because it is easy to be there, but because people feel welcomed there when they talk about crypto instead of something they fear they may not survive long and get banned. Jack was obviously the reason for that since the start.