Or at least that’s the impression I get. Otherwise, if they were so terribly worried about what Facebook does with their data, they would simply stop using it. It’s still a “free” service, right? But, of course, nothing is ever for free.

Facebook is open about collecting a broad variety of personal information, from facial recognition data to, yes, “likes” on other sites. Privacy-minded people can easily find out what Facebook knows about them and even download the data. So it’s not as if users were deceptively kept in the dark about Facebook’s harvesting of “21st century raw materials.” That, however, is not the Federal Cartel Office’s main concern; it’s that Facebook, as a company dominant in its market, forces users to agree to these harvesting practices: They don’t really have any place else to go for their digital social needs if they feel uncomfortable about how their data are used. If it’s a choice “between accepting ‘the whole Facebook package,’ including an extensive disclosure of personal data, or not using Facebook at all,” as the regulator put it in a December document, and if Facebook is a dominant company, it’s illegal in Germany.

The regulatory attack on personal data harvesting is based on the unproven assumption that the data are valuable.