The appropriateness of data being used is tied to the context it was collected and used in.

So if it's collected in a context where only superficial things can be extracted and then it's put in a context where it can be deeply understood, it feels like a betrayal.

That's why Google's data is a blessing and a curse in an era of LLMs.

They're sitting on a trove of data for each user… but if they preprocessed everyone's decades of emails it would feel like a crazy beytral, an invasion.