I don't trust any of these companies with my data, and I assume that whatever data they've got is going to be used, one way or another, no matter what they tell you. It would be nice if you could stick a sentinel in your data that if it ever shows up in the models you know they've broken the rules for sure.
Yeah. Unfortunately they know you can't catch them on this so they feel absolutely free to do whatever they please
If such a data sentinel did exist then we might see them change their behavior