[thaumasiotes]

Setting cookies involves you telling all your visitors that you're tracking them. How would the server-side tracking be detected?

[janosdebugs]

Fingerprinting still requires a lot of client-side information. Sending that to the server for no good reason may prompt some questions.

[jefftk]

I expect Microsoft would still disclose it in their privacy policy. Or be vulnerable to a whistleblower.

[tracker1]

It's not "tracking" it's just ensuring a "consistent user experience throughout our ecosystem".

/sarc

[jefftk]

The tracking they were fined for was for ad fraud detection, not personalization.