I've only shown the card in 2 sets of circumstances. First, when my status has recently risen. Hilton had my status as Gold for a couple months after I hit Diamond due in part to my making reservations prior to status change and in part due to database problems on their end. Second, when I'm flying a partner airline and wish to board early or use an elite check-in line. In all other circumstances, they seem to know who and what I am.