And nowadays you've got an "advertising ID" being exposed by the operating systems themselves, an ID that all apps can use to track your behavior across the net. I know of at least Windows 10, iOS and Android that do this. And this is actually a step up, as before the "advertising ID" apps were using much more persistent forms of identification.
And I'm all for being privacy conscious, personally I'm downright paranoid. But lets be honest, ad-blocking isn't about being privacy conscious.
There are two kinds of readers in this world: those who can read with a bunch of gyrating monkeys, dancing squirrels or flashing crap in the sidebar, and those who can't. I'm one who can't. If the ads behaved themselves better, I might be able to tolerate them. As it is, I block all of them. It's quite jarring to use the web on a browser which doesn't block ads - I find it unusable, for page load-speed and composition reasons (ads constantly muscling in on the body text as they get dragged in).
GP mentioned Ghostery. AFAIK it does block these and many other non-ad third-party requests in its default configuration.
Depending on the device, I am using Privacy Badger from EFF, Mozilla's Focus for iOS, or uBlock with the EasyPrivacy list. Was using AdBlock Plus in Firefox for Android, but it lacks the option to subscribe to third-party filter lists, an almost 2 year old ticket that still hasn't been fixed.
Let's be honest, advertising is what pays for the whole menagerie of creepy snoops, therefore ad-blocking hurts even those creeps who track without ads of their own.
That's why Ghostery is blocking those for me.
What information/data do you have do back this claim in regard to the 'meaningful' analytics?
You still have to trust Apple that this opt-out is effective. But I really see more harm than good for them should they actually be lying about that.
[I'm talking purely about what these companies do, and not about malicious sites and other ad networks or about how safe the personal profile information really is.]
Apple, meanwhile—having direct access to your phone's OS—just pre-download a full ad-inventory database to your device, and then your device, using demographics data stored only on the device, targets itself; Apple's servers don't learn anything about you, only what ads your phone decided to show you.
That's interesting if true, but I'm pretty sure that's very, very wrong. Do you have any source for this? I tried Googling it and was unable to find anything saying that, and I would be pretty surprised if that's how it works (especially pre-downloading inventory), given my passing familiarity with how ad networks work. Especially since their privacy page (which talks about iAd)[1], makes no mention of something which would be a drastically different way of operating an ad network (and thus excellent for marketing onself as the privacy-conscious alternative).