What changes to the incentive structure do you think would help here? Blacklisting seems appropriate for repeat offenders but I'd be more interested in changin

What changes to the incentive structure do you think would help here? Blacklisting seems appropriate for repeat offenders but I'd be more interested in changing the incentives for funding to prevent fraud in the first place. The problem with blacklisting in my view is that many fraudsters who get away with it will just continue anyway since they do not "learn their lesson" until long after the damage is already done.