Yelp are not in the review business. People who read and write reviews are not their customers. Yelp are in the "Convincing businesses to pay Yelp to game revie

Yelp are not in the review business. People who read and write reviews are not their customers. Yelp are in the "Convincing businesses to pay Yelp to game reviews" business. Businesses are their customrs. Under the circumstances, a "false negative" like this is irrelevant to Yelp's business. In fact, false negatives are good for Yelp: They have an incentive to present mixed reviews to businesses who can then pay to filter the negatives out.