Then they would not allow pay-to-play in-app purchases

As another commentator stated, if they actually cared about this issue, they would have done what all the other cloud providers have been doing for many years, and what everyone opposed to this wants them to do - just scan the cloud. That's all they're effectively doing right now, only with the scanning happening on a person's private device.

If they did, they would have done this much sooner.