A new report says that a PR firm has been paying Rotten Tomatoes critics for positive reviews for over five years. 

Wikipedia - "In February 2016, Rotten Tomatoes and its parent site Flixster were sold to Comcast's Fandango. Warner Bros. retained a minority stake in the merged entities, including Fandango."

https://www.vulture.com/article/rotten-tomatoes-movie-rating.html