"What is not a question is that a criminal investigation is now open."
Good. These companies deserve each and every stone thrown at them, and much more.
This is unfortunately common practice on the internet.
Browser fingerprinting is the new norm. LinkedIn just didn't disclose it in their privacy policy. They do mention canvas fingerprinting and collecting other signals, but not specifically this extension enumeration stuff.
Some truly straight-shooters should be pointing the finger very accurately to where all this is coming from.
Anybody who has a team committed to non-below-average websites should be able to screen applicants against a roster of known enshittifiers.
It may be too late to nip it in the bud, but there's no reason to allow these individuals to continue unabated, much less keep growing so annoyingly.
What's wrong with some people anyway?