>Please list one non scam related use case for irreversible transactions and tell me how anything crypto/coin solves that. Introducing a mechanism for reversib

>Please list one non scam related use case for irreversible transactions and tell me how anything crypto/coin solves that. Introducing a mechanism for reversibility introduces risk for the party responsible for bearing the cost of reversing the transaction. For CC companies, that cost is reflected by charging the merchant maybe a couple percent fee which covers both insurance for reversing customers as well as transaction costs. Some transaction occur between parties who already trust each other in at least one direction. For instance, I sometimes buy metals from APMEX. I have absolute trust in them to not rip me off. They on the other hand, do not have absolute trust I will not rip them off. I do not desire any insurance whatsoever by an intermediary. By using cryptocurrency, I'm able to avoid credit card fees while still yielding fast <30 clearing times for precious metals transactions. This speed and cost point unachievable almost any other way with online payment to a bullion dealer. So what do I gain by losing reversibility? Less transaction fee. The merchant is absolutely assured I can't reverse the transaction, thus their risk is lowered, and they hand off the lower prices to me.