The value was always in the connection not any individual datum.

Besides, I choose what information I link to this identity do I not? You're welcome to my views and their connection to each other. Doesn't mean I want you to know everything else.

What is more personal than the contents of your mind? Each interaction and comment is a piece of information which when combined is much more revealing about you than fingerprints.

It's not as personal as your diary, but it is the closest thing to it.

You're free to know me, but not where I live. It's not hard to see the difference in types of personal information.