The main reason to advertise on Yelp is extortion. If you don't pay Yelp their extortion fees, they only allow a small number of reviews for your business, and even worse, their algorithms pushes the negative reviews to the top. One of my friends' businesses currently has 200 "filtered" reviews and 19 posted reviews which in itself makes his business look incredibly shady (sure, he runs a dispensary, so he might be shady, but that's besides the point).
