The article states that they store in their database your "name, gender, date of birth, zip code, and photo", but currently they don't store your address or id number.
The information stored though is certainly sufficient to find your street address and a great deal of other information in almost all cases since a full legal name + DoB + zip code match is nearly always a unique identifier.
Storing the id photo is fun and no doubt useful for further tracking of the patron using things such as the cameras on the table kiosks. Also the photo has value for sale to other interested parties.