The thing is that I could actually see this working, because advertisers and publishers would have to incentivize people for turning the feature on. If it becam

The thing is that I could actually see this working, because advertisers and publishers would have to incentivize people for turning the feature on. If it became widespread known that turning targeting on resulted in seeing relevant 10% discount ads a lot of people would give up privacy for that, probably for less. You can see this behaviour in the success of browser extensions like Honey which are privacy nightmares to people like us, but totally acceptable to most people.