Do people think it's likely that Apple would implement such a system? That would take a certain amount of coordination with the RIAA and engineering effort on

Do people think it's likely that Apple would implement such a system? That would take a certain amount of coordination with the RIAA and engineering effort on Apple's part to... screw over their paying customers. I don't think it's likely. Nor does Apple have any need to keep the original data on file. They make a match, that's it, job's done.