Firstly, I’m not against privacy or anything, just ignorant. I do try to stay pretty private despite that.
I wanted to know what type of info (Corporations? Governments? Websites??) Typically get from you and how they use it and how that affects me.
They don’t use it only for improving user experience. Based on a user profile they can bump your premiums just because you posted a photo on a snowboard (risky activity) or they can deny you a loan because someone posted on your timeline that you own someone some money.
Also based on your profile you are manipulated to buy products/services you don’t really need.