[aneth4]

Does anyone care if Facebook knows when their menstrual cycle is? Or has a prediction on when you are going to die? Or predicts when I'm going to get a cold?

I don't care.

If you are this paranoid, you should stop using credit cards, phones, and emails, as all that data is similarly being mined and sold or capable of such.

I do think we should have strong disclosure and privacy laws - I don't know detail but I believe the EU does a better job of this than the US. We should be entitled to know what data is gathered about us and what is sold, and much of that should require consent.