@Synergy: I think they just ask for birthdates to kill time. And then, sometimes I had readers repeat it to me, to make sure they had it right, or pretended not to hear it accurately, so as to have me repeat myself. Just my opinion. No reason they need birthdate, even if they were doing an astrology reading, they would need a lot of time to do a chart or whatever, from what I understand. Just my opinion.
And I KNOW the readers talk about customers among each other, because once I emailed a woman I wanted to have a reading with (don't remember her name) - it was couple years ago, and she asked me why I didn't call so&so, mentioned a reader BY NAME I often called upon. I was shocked that she knew what reader(s) I have spoken to. So, I emailed the reader she mentioned and asked her how this OTHER reader knew I got readings from her, and she denied even knowing who said reader was. I called B.S. on that.