A more accurate analogy: you read the menu and notice in the fine print at the bottom that they will charge your credit card an extra $25 if you post a bad rev

A more accurate analogy: you read the menu and notice in the fine print at the bottom that they will charge your credit card an extra $25 if you post a bad review of your meal. So you get on Yelp and post a review warning others of the practice. Doesn't that seem like a legitimate use of a review site? Technically, yes, you didn't utilize the service, but that doesn't mean you have no qualifications to comment on the business's bad policies. "I drove to the repair shop, they insulted me with ethnic slur, and I got mad and drove away." Would this not be a legitimate and useful review?