My point is that the data on here is purposely shared with every other federated instance, there's no semblance of privacy and your data is shared with hundreds or likely thousands of admins by the time it's done (more and more as the network grows). There's no reason to trust that every admin will keep that information private, some people are already talking about putting up services to expose all the hidden information (in the name of "transparency"). It's simply trivial for Meta or anybody else to get copies of the data because there's no real protection from it unless you're making your instance an island (and that's an island from everybody, not just one specifically known to be Meta).