You're of course correct, they can still see that I'm a container user because they can only even see me accessing Facebook directly, but fail to see any activi

You're of course correct, they can still see that I'm a container user because they can only even see me accessing Facebook directly, but fail to see any activity from other pages loading the like buttons and their other tracking crap. So that's a data point to them. Another is that I've disabled the "app platform" or whatever they call it in my profile settings before, so I didn't see their online tentacles to being with and keeping them contained is just to keep them honest (the "do not use app platform" toggle is similar to "do not track" in this regard). But they can't do much with the profile they build on me: they know I'm a container using, ad-blocking, Facebook-barely-using, well-off (I participate in a group about an expensive hobby) dude who they failed to generate a single click off in their entire lifetime. That's not-being-tracked enough for me. Getting protection from tracking beyond that is not IMO scalably solvable using techological means and crosses over to the regulatory realm.