I agree with DINX. Now here's what I think:
How about giving Platinum members who rightfully earned their status something like a code after their name/membership number so that the frontdesk staff can ensure a more than satisfactory stay for their loyal guests? They could get preferential treatment over those who achieved theirs as a result of promotional activities. Is this discrimination?
I once flew international First class on a comp ticket and was the last passenger asked what I wanted for dinner (the f/a asked the entire first class section before asking me -- I was seated on 2A). I didn't mind; I wasn't paying anyways. Should this be applied to hotel procedures as well? Like, "I-know-you're-Platinum-level-but-you-got-it-through-promos-so-I'll-still-give-you-excellent-service-BUT-this-other-guy-here-is-the-real-Platinum-member-who-earned-it-the-hard-way- so-I'm-more-prone-to-giving-him-better-service-until-you-prove-to-us-that-you'd-be-loyal-to-our-chain" kinda thing? Just wondering.