Why do some people treat game reviews as a fact?

I’ve seen this a lot online. If a game gets a bad review and someone has a different opinion on it (for example, say it’s good), someone uses a review to prove that the game is bad. If game reviews themselves are opinion, then why do some people use treat them as if they are fact? Aren’t people entitled to have a different opinion than a game reviewer?

Tags: game reviewer, Game Reviews