The problem is that other apps advertise on Facebook, and in order to attribute new installations to the ads (to find out how effective they are), they had to add the Facebook SDK in those other apps. Then when the social media-avoiding users ran those other apps, they ran Facebook code on their device without knowing and still got tracked.

This is what Apple’s ATT was designed to prevent. If app developers want to do that now, they need to ask the user for permission. The more Apple’s control over the platform is rolled back, the more stuff like this happens.

As a user, I don’t want to be using, say, a recipe app and be secretly tracked by Facebook in the background.

> I want them to prevent social media companies from tracking my device across my other apps.

They didn't say anything about not liking social media, only that they don't want to be secretly tracked.

This is good advice. I do that. HN and occasional reddit browsing (on the "old" design, the "new" one sucks ass) is where I draw the line.