> "every cryptocurrency system is a fraud at its heart."

I'm not sure I agree with you on that part.

Fraud is defined as "wrongful or criminal deception intended to result in financial or personal gain." Encryption-based currency by itself does not meet that definition.

Can people use crypto to commit fraud? Yes, just the same as they could use fiat or anything else that has perceived value.

imho the main value of crypto as a technology is that it is A) decentralized, and B) removes many intermediaries & inefficiencies involved in handling + distributing money. </$0.02>