Simply the same anonymity we have in person is fine. But allowing "anyone" to view your tv watching habits, what you decide to eat, what you do on your free time, etc is simply crossing a line. I don't let strangers into my home and let them watch me do what I do. For most day to day activities I'm an "honest person". But that doesn't mean I want my life to be a TV show.

I'll share what I want to share. And I'll keep the rest private.

As for why? Simply because I like to not share every detail to everyone. Some people may not need to know that I watch anime on my free time (especially if what I'm currently doing is work related). And there's no reason for people to judge others based on unrelated activities.

That said, I freely share most of my life to anyone curious. I keep an anime list updated with dates I watched them, what my thoughts were, and which episode I'm on. I frequently post my thoughts about stuff online (though with a pseudoname). I don't mind people seeing the stuff I write, and frequently write about "controversial" topics on my facebook account as well. That doesn't bother me.

It bothers me when I write/say/do something for a specific person, and then an unrelated person then gets access to that without me knowing or saying so.

Best way to put it: If I upload a photo of me and my friends on facebook, I don't want that photo to just randomly spread across the net with my name attached to it, if I didn't say so. Having millions of people know who you are and where you live is incredibly dangerous and terrifying. There are a lot of horrible people, and I'd rather they not know everything about me.

Doesn't matter that it's "the government'. As far as I know, "the government" could be sharing that information with any number of people. I didn't give them that information, they took it from me. If I give facebook something, that means facebook can have it. Not the NSA. Not the CIA. Not fucking anyone else. Just me, maybe the ISP, and Facebook. Facebook and I then agree on who to show it to.