Apparently you haven't seen this before - it's not as stupid as you think.
He's asking for your mailing address, not your e-mail address.
They do that to avoid sending paper (via USPS) to people outside their district.
Actually, you are partially right.
Maybe he is referring to my mailing address, as opposed to my email address. (Should I open mail from him? It might contain anthrax. He won't open mine, which is why I resorted to email.)
But I did include my name and address. I just replaced them with ML/NJ when I posted it here.
(And also: Congressmen don't speak to many high-schoolers not from their district. Boy! The poor Conressman got more than he bargained for when my daughter was chosen as one of three to represent her high school when he visited there. She already had met him and knew about his see no evil, hear no evil, speak no evil attitude.)
ML/NJ