The other use of everything good
It does look like CSP reports could be used for precise browser fingerprinting, analyzing whether or not certain sites are reachable, and analyzing load times.
It's hardly the worst thing about browsers, though. I tried to convince an IT department of a previous employer that many browsers were an incredible security risk because they used remote URL completion assistance. They were leaking the title of every confidential Confluence page in the company, and a recipient of that confidential data was business partner. (IT told me to not worry.)
Biting the hand that feeds IT
