On Fri, 18 Sep 2015 22:40:29 -0700, Don Y
wrote:

Casinos have had sophisticated facial recognition software and they
may know a lot more about you than you think.

They don't know who "you" are unless and until you provide some
form of identification -- rent a room, use a credit card, etc.
Until then, you're just pixels on a display!

You are pixels in the computer and the computer will recognize you.

There is a lot of facial recognition software out there even though
people don't talk about it much.