[hn_throwaway_99]

This is a bullshit tradeoff. Facebook still knows a ton about you by your friends and activity on Facebook, and they can still show you a ton of ads on Facebook that are highly targeted to your demographic profile, and make a shit ton of money doing it. They could also make a ton of money showing you ads on a partner app if, for example, you logged in with FB to another app.

The only thing Apple is preventing them from doing is making an even larger shit ton of money by essentially knowing every app you ever use for anything that includes the Facebook SDK.

Note the same thing is true of Google. Google can (and did, and does) make shit tons of money by showing you targeted, relevant ads just based on your search keywords, or alternatively on a partner site by showing you ads just based on that site's content. But no, they need to make even more gargantuan shit tons of money by tracking your every move in Chrome and Android.