letslunch is a very cool concept, but how often do you get negative reviews? For example, if I lunched with Bill Gates, and even if he was an asshole who did no

letslunch is a very cool concept, but how often do you get negative reviews? For example, if I lunched with Bill Gates, and even if he was an asshole who did not stop talking on his cell phone during most of the meal, what is my incentive to give him a bad review?