I'm going to sound like a grinch here, but the flip side of researching the guests to provide stellar service is that the people who don't show up in the persons of note list may end up getting crappier service. It's like the notorious practice of fashion people not qualifying to buy an overpriced handbag until they've proven their loyalty to the brand by buying previous overpriced handbags.

The reason people come back from overseas trips raving about some cute little trattoria or izakaya joint is rarely because the owner sponsored a penguin, but more because the host achieved a genuinely human connection with the diner.