The phrase "bogus reviews" refers to fake or dishonest opinions or comments about a product, service, or experience. They are not genuine and are usually written to deceive others or manipulate ratings or reputations. Full definition
But I have to believe that you can't base a career on bogus reviews. (russellblake.com)
Whereas GoodReads has a reputation for being a reliable place to find new books based on peer reviews and recommendations, Amazon has had to crack down on authors posting bogus reviews of their own works. (relevantmagazine.com)
These fake Amazon reviews seem to be part of a much bigger problem, sparking fears that consumer spending of # 23billion (USD$ 35 billion or AUD$ 48 billion) a year is being rigged by sellers paying for bogus reviews. (writerfulbooks.com)