I think the simple point is I could go to a casino and without much trouble get blank cards, and then put any name I wanted on them.

Even easier, some casinos take the info of a slip of paper, and never check to see if it's really your name. When slot cards were in the early years, I had some with assumed names, just because I was bored and wanted to see if I could get one with Mickey J. Hodag on it.