I love the irony of you checking them out for more information in response to a comment of them being worried about who reads their data. Nothing wrong with it, just make me chuckle

There's something about circles of control in this, that makes the difference. If I publish information about myself, that's about me, and it's in my control.

If someone else shares information about me, without my consent, and someone uses that to nose in on me, that feels creepy and problematic.