Running in my browser.
>> On the other hand demanding of publishers to not track you while you're on their property is unreasonable.
I'm not on their property. I'm fairly happy for them to record what they can see at their end in terms of what pages I go to, but I find it very unreasonable to demand that I run whatever code the website operator asks me to run, to turn my computer into a machine that reports anything/everything about my site interaction to anyone the site owner feels like, and all on the basis of an implied social contract of some form.