> Facebook lets companies bid for ads to show you, based on Facebook’s data about your interests and demographics. If you never engage with the ads there is no information leakage.
That's not true.
That's not true.
I have never seen Facebook allowing large scale harvesting of their data.
And it would qualify as data breaches in places like EU which do not tolerate this sort of thing.
I'm no facebook fan by the way, but there's no reason for facebook to sell their most important asset when they can allow you to pay to use it, without ever seeing it