They are not asking for users to correct or provide any information, so you really aren't helping. Plus, it isn't even obvious how tags on your sightseeing photos would be used to improve CSAM detection.
Fair enough, but the investment sure helps to serve both goals. I wasn't aware there was no training going on from the user side though.
I have to admit the text OCR in photos could be handy. But I hate it when their algorithms poke around my photos trying to identify people and locations and auto-categorise them (which it's already done for a few years now). It makes me feel spied upon and there didn't seem to be a way to switch this off on iOS.
That was one of the many more things (both on the privacy and vendor lock-in side) I have issues with on Mac and iOS now and I've moved away completely in my personal life. I only use it for work now. My personal mobile is Android but degoogled and with mostly open source apps and tracking blockers on the ones that aren't.
So this was not the only reason. I did move all my old content out of iCloud recently but there was also little need to still have it there especially because of its closed nature.
