Yelp can be a great place to research restaurants and other businesses, but the reviews you see on a page aren't the only reviews for that business. Yelp's hidden some others away, and sometimes they can help you make a more informed decision.
As explained in the video above, Yelp filters out some reviews for a reason. Maybe they aren't from trusted members of the community, or maybe that business put a call out on its Facebook page asking for fans to review it. The Consumerist explains a case in which the latter seems likely:
Take, for example, the Yelp page for this consignment shop in Colorado. It currently only has three posted reviews, two of which are very negative while the third is a five-star write-up. And it looks like that positive review wasn't posted until after the store and its Yelp problems were featured on the local news.
So until that latest review was added, the store's star rating on Yelp was a very poor single star, in spite of the fact that there are 32 reviews hidden behind the filter wall, which requires the user to actively click on a link and enter Captcha text to prove they are a human being.
These positive reviews may have all been posted after the business called for positive reviews, but that doesn't make them worthless — it just means maybe they shouldn't have as much weight as others, or that you should take them with a small grain of salt. Either way, the next time you're looking at Yelp, it may be helpful to scroll down to the "Filtered Reviews". They may help give a slightly clearer picture of the business in question. Hit the link to read more.