IMDB and similar review sites are mostly ignored, which makes the scoring highly susceptible to forum-raid behaviors. This is pretty easy to design against (ie community as a whole gets averaged into one ‘vote’ per day, highs and lows get thrown out) but most of these sites like the attention, so they are happy to pander to the hate mobs, for ad views, which makes me so very tired.
There are perfectly good metrics of audience approval, such as Comscore audience surveys, which industry uses when they care about the actual result. For a while The Last Jedi was the worst rated movie of all time on Metacritic and also a B+ on surveys.
Who cares, right? Except participating in hate mobs is how you radicalize people further up the ladder of engagement, and the end of that ladder is young men gunning down churches and nightclubs.
https://journals.sagepub.com/doi/full/10.1177/20563051211021378