It varies with the casino. With M-Life (MGM Resorts), you can use express comps that have been earned with the card and not have any other info on the player. Swipe it at a restaurant, or buy merchandise at a retail store in the hotel.

Our society likes to bring law suits these days. "Identity Theft" is a hot button, with SS numbers and bank account numbers being treated as personal property even if you can't do much with just those numbers. I wouldn't want to be responsible for a web site that posted exact copies of casino players cards.

A case could be made that some individuals don't want it known that they patronize casinos.

Think about it.