I don't mind that the operator has my information in front of her/him. What I do mind is giving my information TWICE! When I key it into the pad, and they verify that I really am a subscriber, that info should be passed onto the operator, who should not have to ask me for the information again.
The other operator function that infuriates me is the request for a Social Security Number. After my refusal to give it to them they tend to get really huffy. They have a form to fill in, after all.