Demanding questions are a form of force.

"What do you do?"

"How much do you make?"

"Where do you live?"

"What are you doing?"

Preemptively: "Nothing-to-hide" folks don't live in transparent houses, wear clothes and don't tell their passwords to everyone they meet. Everyone has something to hide or they're dishonest. Information equals opportunities for attack... Publisher's Clearing House and other "contest" identity prostitution scams... no way.