This was news in the WSJ back in 2006. 😊
http://www.columbia.edu/~rk566/Larry...el%20(CRM).doc
“Now they are going a step further: discreetly monitoring what guests do during their stays and then recording that information in computer systems that are shared by the hotel company's different properties.
What is generating the most concern is the reliance on sharp-eyed-and-eared employees to pick up on and record clues. The hotel industry calls its data-collection procedures "capturing" information, but some travelers worry they amount to snooping.”