Crypto is scam in general because it creates a system that issues the certificates to lure people to invest, and then people are able to return the investments only if new investors buy the certificates. Hence, a modern day investment scam.
Nah, crypto is about decentralization and individual empowerment. Nothing can be used to mislead people, and none of these fraudulent practices can work here.
In fact, I can only say that crypto is the most promising form of money creation system we have in this era and crypto and blockchain are here to stay.