While I respect the concerns of those who view this as a serious privacy matter, I do have to wonder how much different it is from being identified by one's phone number (Caller ID).

I remember calling a customer support line (not Spectrum) and being asked, "Is this William?" by the support representative. I was taken aback, but didn't really feel that my privacy had been violated, when the rep responded that my phone number was in the company database along with my name.