Let me explain.
The other day a customer informed me that he had posted a review on my yelp page, much to my surprise I saw a negative post that I wanted to respond to, after a short time I ended up calling Yelp to find out how to respond I logged on to my yelp page to find out that there were 9 reviews on my yelp page that Yelp had deemed to be not recommended using software measure quality and activity on Yelp. more like how much money you pay them for advertising I guess Yelp dose this to everyone that doesn't pay them for there services suppressing and censoring your reviews as to make you pay to let people see what your customers really think of your business.
I printed out the ones that Yelp deems not recommended let me know and I will send them to you.
I guess the big picture here is Yelp wants to lead you down the road they want you to see and keep you blind to everyone else, I often say to my customers take all that info you get when you are getting an estimate for any project and do your own research, everyone will tell you what you want to hear its up to you to figure out what is truth and what is fluff.