On the other hand, this is Facebook's business model.
Not according to the NY Times this week. Amazon have been reading your private messages on Facebook.
https://www.nytimes.com/2018/12/18/technology/facebook-priva...
It's not as bad. It's the difference between paying somebody to tell them secrets about you and selling secrets about you. But it's definitely not a thing a person respectful of your privacy would do.
Literally every company that has access to users' data has in one way or another some kind of business model based on selling that data. Every day I come across 2 or 3 articles from big newspapers giving Facebook some shit about selling user data. But what about Experian? What about phone carriers? They all sell users' data, maybe anonymous maybe not but they are still making profit on people's privacy.
And when some shit goes down, we make a big fuss about it for a few days and then we go back to normal. Equifax anyone?
Honestly, companies in the position of making profit on users' data have been doing it for the better part of 15 years now, I don't understand why we are acting so surprised now.