All reviews are censored.
As long as you agree with imdbs world views you seem to be able to leave movie reviews on their site. But, go against their views and your review is denied. I always thought something was wrong when I'd see a movie rated eight or nine, then watch it and scratch my head, thinking it was a two at best. This time, I gave a review on the movie one battle after another (which i rated 2). and just gave my true review and opinion of the mivie, and my review was denied. I am done using IMDB.