The Yelp Equation and Morbid Estate Sales, The conversation segues into our feelings about Yelp reviews, which we unanimously question the veracity of user comments. There's an algorithm, an equation to how to be successful in review endorsements. Yelp, Google, and Amazon are complicit in encouraging aggressive vendor tactics to achieve sales and ongoing interest. Of course, this immediately reminded Quinn of friends that had purchased furniture for their new home at an estate sale of a murder victim, which creeped her out especially when she learned that the bargain they got for the furniture also required cleaning the blood out of the couch. How far are you willing to go to get a really good deal on a couch or any product?