Here's the thing about Yelp - GREAT user experience and great, honest reviews. I used to live by them. Then, I tried to help my mom set up an account for her business. She got a bunch of 5-star reviews from her clients. As a business owner, she was thrilled to see her Yelp page (and thus website) showing super high in Google searches for offers in her area. Thrilled, of course, until Yelp filtered every single review. Not just 1 or 2, but all 6 of the 5-star reviews her diligent customers left.:(
Try contacting their support to ask them questions about this kind of thing. First, try *finding* their support! It doesn't really exist. They'll give you a canned response talking about why they filter reviews. Yes, I know that scammers will try anything to get their businesses up high in the ranks. But 6 different reviews from real people my mom shakes hands with every day? I don't think so.
I've since learned that is a pretty common and very sleazy Yelp practice to make you pay for additional services. My mom can't afford that and why should she? With word of mouth, her business was doing great. Just wish Yelp would help me fix her page, and it makes me wonder how many other businesses have low or non-existent reviews because of all this.
So yeah. Long story short, I don't trust their review filter process at all anymore. :( Sad, because I know I personally put a lot of time and effort into my reviews.