[firefoxkekw]

It wasn't true even without the unique identifier, Apple can always correlated all the other data they sent to their servers to identified you.

Most people thing of anonymity like a boolean when is most like a gradient, for example, Tor not only needs onion routing, it also need to to present each user to the net alike, that is why they configure their version of firefox in a specific way and even a simple thing like changing the resolution of the window make you less anonymous. Even in perfect conditions you still vulnerable to correlation attacks and if you are the US, you can probably just use network flow data to deanonymize an user, obviously to do it the resources and implications would be enormous.

In the end is just a gradient of being anonymous to who? The ad conglomerate? A big state?

It would be literally impossible with a standard iphone to be anonymous to Apple, is just PR by Apple.