A need has opened for an honest review system.
Netflix even Amazon are bad quality.
It would be possible to have a useful review system. Have the user rate a number of movies. Then do a little data crunching to match up the user with users with similar tastes. Use the ratings from that set of users to deliver a customized rating that gives a user an idea of whether a particular show is something HE would like.
Trolls and bots who do not really match up with real users tastes would wind up not being used.