Maybe not a scam, but utterly useless for any true value store.
Reconciliation is ABSOLUTELY FOUNDATIONAL to a monetary system of value.
Literally some of the oldest writing we have is folks arguing over the details of a deal (~1750 BCE: Complaint tablet to Ea-nasir).
If you have a system where "Code is law" and trust can be violated and that violation literally cannot be addressed, then you don't have a system that works. Exchange literally requires some form of trust.