Apple user research revealed, sort of
06 June 2017
This is not normally the blog to come to for Apple fan posts (my ThinkPad, desktop Linux, cold dead hands, and so on) but really good work here on "Intelligent Tracking Prevention" in Apple Safari.
Looks like the spawn of Privacy Badger and cookie double-keying, designed to balance user protection from surveillance marketing with minimal breakage of sites that depend on third-party resources.
(Now all the webmasters will fix stuff to make it work with Intelligent Tracking Prevention, which makes it easier for other browsers and privacy tools to justify their own features to protect users. Of course, now the surveillance marketers will rely more on passive fingerprinting, and Apple has an advantage there because there are fewer different Safari-capable devices. But browsers need to fix fingerprinting anyway.)
Apple does massive amounts of user research and it's fun to watch the results leak through when they communicate about features. Looks like they have found that users care about being "followed" from site to site by ads, and that users are still pretty good at applied behavioral economics. The side effect of tracking protection, of course, is that it takes high-reputation sites out of competition with the bottom-feeders to reach their own audiences, so Intelligent Tracking Prevention is great news for publishers too.
Meanwhile, I don't get Google's weak "filter" thing. Looks like a transparently publisher-hostile move (since it blocks some potentially big-money ads without addressing the problem of site commodification), unless I'm missing something.