Crypto does the thing it says it does: enable peer-to-peer transactions that require the advance permission of no third party or government. It really is digital cash.

The problem is that’s the best medium for scams. No matter which crypto you transact in, there is always a point where the transaction becomes immutable, no backsies, no “reverse the charges”, no “court order to confiscate funds”. The money is gone, and can’t be compelled to come back unless the scammer is compelled to send it back. And if the scammer is outside the reach if the victim’s governmental law enforcement, the literally nothing can be done.