I am not a fan of censorship. However, in cases where the review is based upon the content and not other merits, I think the review should not be counted in the overall score. I would even go so far as to have the review removed.
I cannot tell you how many reviews I have read where the reviewer gave a negative review because of content or because it was posted in a language other than English. I recall several tales written by Mad Lews and Lex Ludite where the reviewer provided a ridiculous review that was entirely based on content. There is no way either should ever receive less than a "5" - both authors are far too technically sound to receive less.
That would not be censorship but an enforcement of the review code; something that should be enforced far more than it is.