Honestly I don't mind them collecting this data, what is really infuriating is the fact they won't share it with me. I would love to know what kind of porn I prefer on weekdays. I think they shouldn't be allowed to track anything with consent or without it unless they share all the data with the subject of spying.

And aside from that, I think it should be much more expensive to say sorry than ask for permission. In my world a firm like facebook should not have any right to exist, they earned it. Fine them to oblivion just like I would get a long time behind bars if I wouldn't do my taxes right.