With fingerprinting, what's the point of all this?
Browsers and Internet commections now have enough discoverable stuff via HTTP and JS to identify users uniquely enough that in 99% of cases the user's session can really get a unique id! Across publishers! Without third party cookies!!
That's great, but once you factor in all the people who downloaded this plugin and are otherwise slightly harder to fingerprint, it's still 99% accurate!
I was saying the number of people who install a plugin that varies the user agent is tiny, and even then there are other ways to detect (just check out the lists of things, screen sizes etc.)
And the big picture is, regardless of these small imperfections, a digital fingerprint is over 95% accurate! So that's very valuable!
Browsers and Internet commections now have enough discoverable stuff via HTTP and JS to identify users uniquely enough that in 99% of cases the user's session can really get a unique id! Across publishers! Without third party cookies!!