[gumby]

An ad/tracking blocker could discriminate between privacy-protecting trackers and spyware, but it would not be worth the time in practice.

Such a distinction would need an option and have to be on by default. Most people use the “out of the box” config, so only a few people (like me) would enable honest tracking.

The blockers would have to keep up with this option to make sure the thing they allow hadn’t switched to evil mode.

And so on. Basically another case where bad actors like google poisoned the well.