I give very little information online. The less people know about me the less I can be hurt. Three people in my neighborhood have had identity theft online so it DOES happen and more often than the software producers would like to admit. Why does Bethesda need me to expose information for a free beta?
When I buy the game I will go to a local store and if asked information online to set up an account I will lie. There is no gain for me in them having that information and a potential for loss.