Actually, it's a statistical certainty that a certain number of illicit transactions take place on Facebook Marketplace. If we were writing a program that we kn

Actually, it's a statistical certainty that a certain number of illicit transactions take place on Facebook Marketplace. If we were writing a program that we knew would have a bug in a certain number of cases then we would write a test for it or write exceptions. If Facebook is handling this responsibly then I'm sure they have a process for identifing wrong do-ers and handing everything they know to the authorities.