I was recently in Prague.  Walking around the city, I noticed the usual TripAdvisor window decals, certificates, and plaques.   But my favorite was this DIY version of the now-iconic TripAdvisor logo:

As a traveler, I am grateful to get to experience businesses of all types – from the cheapest of the local joints, to some of the poshest places in the city.  One of things I noticed on this trip is that prominent displays of TripAdvisor creds in businesses seem to be linked to class.  That is, there are more of them in businesses catering to the middle-classes…and they are either not as visible or not displayed at all in businesses that cater to the elites.