....so? Site owners are not guaranteed this access; their script runs on the client computer.
I say this as someone who does a lot of analytical research and re-targeting and would be hurt if this was rolled out on a larger scale; I just don't think I have a right to the data.
Imagine you were a police officer with this mentality.
"As someone who investigates lots of crimes, it's totally fine if someone invokes the fifth amendment, I don't have the right to compel them to answer."
"I mean if you don't care about something prevents you from doing your job, why even join the force?"
Kind of presuming the wrong thing there. There's still work to be done, right? Just because something would make the job easier does not mean it should be done, ethics come first.