I abandoned Yelp as a user pretty quick as it was just too much to filter through so many reviews by people who 1) Had some one off bad experience that is probably not representative of anything. 2) Wished that place they reviewed was like some other place that is kinda the same but ... it's twice the price so why are you comparing?
Example, if you go to a hole in the wall taco joint, you're going to get greasy tacos served on plastic or paper plates. I mean, it's not fancy, but they're also $1 each. By complaining about that on yelp you're just showing off your silliness, not providing anything useful to other potential customers.