It's one thing to know stuff. But it's 100% impertinent for FDCs or lounge staff to "engage with guests" on the topic. I don't care to have any open-air discussions about where I've been, or where I'm going, or why. Moreover, I particularly dislike when I get handed a welcome-and-thanks-for-staying note where they include information about my MR account -- notes in which the total points balance is invariably off, so I doubt that they are getting real-time updates on that. In the pre-Internet era, perhaps supplying this information to guests was a nice-to-do in between periodic statement mailings, but nowadays it's undeniably intrusive. Better the staff spend their time on matters such as avoiding assigning rooms with connecting doors, and other stuff that actually would improve an Elite member's stay. That said, I always smile and say "oh, thank you," because the FDC is just doing what he/she was told to do and I tell myself that although the practice is misguided, "everyone means well."