You can buy a thousand positive reviews on Amazon for US$10,900 (RM44,586). That’s less than US$11 (RM45) each. So how do you know which reviews to trust?
I looked at an ArsTechnica article, “Posing as an Amazon Seller”, to find out. One commenter said he rented a dreadful movie that had 4.5 out of five stars and over 10,000 positive reviews. Now he avoids anything with reviews in the thousands.