@abbe98 Very fair point. I'm not read up on how the whole data collection works in this case, but I'm also wondering how much is automated by FB advertising tools and how much is proactively shared.
All-in-all I think companies are extremely naive in their use of third-party tools. And data that may be collected under fair-use to process an order is inadvertently then also shared with subprocessors for profile building.
@axbom @abbe98 I think that this is it: Facebook says one thing, and does another. Facebook is trying to shift blame onto advertisers, who really are naive, but Facebook also doesn't do anything proactively because they need the data, especially now that iOS privacy settings have denied them data from more than 80% of iOS users.