Maybe raising money for ventures. A huge amount was raised in ICOs and mostly they were scammy and are heading to zero but there may be a future for more legit versions. There is a bit of law sidestepping about it but you can run them in jurisdictions where they are legal. And there's no real reason for them to be illegal if you are not screwing the investors. CZ of Binance was saying similar recently https://ambcrypto.com/binance-ceo-changpeng-zhao-cryptos-kil...