From an outsider's perspective, an
immediate worry about this approach is that the site could potentially operate in a manner similar to a Hollywood focus group, encouraging authors (consciously or not) to cut anything difficult or alienating in favour of a blander, more widely acceptable middle ground — trying to
appeal to all of the people all of the time rather than trusting the judgement of one auxiliary pair of
eyes (speaking of which, professional editors probably won't be too chuffed either).