A great article that will sadly fall on deaf ears... or blind eyes in this case.
People are affected by marketing far more than they give it credit for. Marketing people are well versed in human psychology insofar as it helps them push product. Long before a review for a high profile game hits the web, most gamers already "know" if they want to buy it or not.
Fanboy-ism and confirmation bias are just extensions of this. Consumers as a whole are becoming incredibly difficult to please, in large part to the shrinking value of their money. People demand perfection and no one wants to feel a fool for spending $60 of their hard-earned money on a perceived "dud".
It's a shame really. People don't want to have deep design discussions or to read an interesting viewpoint. They just want to see a score and to know if they made the right choice in life.