I like it, but I leaves wiggle room, that I don't like.
All I want (personally anyway) is for the whole thing to be truly opt-in. in other words I have to click a button that says "allow this", which I personally will never do. In the end the opt-in can't and should not be tied to the use of any other services, and if I don't do it, they don't track a damned thing.
