The point of the piece is that many of our "secrets" -- things we guard carefully and fear being exposed -- wouldn't surprise, or even interest, other people.
It's just a shift in perspective, not an attack on anyone's right to privacy.
(David Foster Wallace, Infinite Jest)
(But this isn't to disagree with the grandparent post, either. Just a statement on perspective.)
But it's difficult or impossible to reverse this, once you've gone down that path.
And as soon as you'll feel like saying something critical, you can very easily be manipulated to remain silent, because the other party will know all your weaknesses. It will know where to attack you efficiently. (And if you take a look at our dumb and immature culture, you will notice that we still think it's ok to judge people, btw. all based on the illusion of "free will").
Yay.