Did Yelp add a star or two to that glowing restaurant review because the restaurant paid for an ad? Did it move the review noting cockroaches at another restaurant to the top of the list because the restaurant refused to buy an ad? Maybe.

Four small businesses are claiming in court that Yelp tried to extort ad payments in exchange for better reviews. Yelp said it doesn't do that; other anecdotal reports say it does. But the 9th Circuit Court dismissed the case. It found that even if Yelp did manipulate the reviews, such manipulation did not rise to the level of "extortion." Instead, noted the opinion, it was, at most, "hard bargaining."

That court decision leaves the whole question of manipulated Yelp reviews in limbo. An appeal to the current suit is possible, and Yelp faces a handful of similar suits in different courts. For now, however, the ruling stands. If Yelp does, in fact, manipulate reviews based on payment or nonpayment of ads, it is currently free to continue doing it.

The mainstream U.S. media generally enjoy a long tradition of "church and state" separation between editorial and advertising, including electronic media. And for the most part the travel media have honored that tradition. Conde Nast routinely identifies entries sponsored by destinations. At SmarterTravel, we always disclose sponsorships of any sort. When a bad review is challenged, instead of deleting it, TripAdvisor keeps the review but posts replies from the business. At this point, it's not clear whether or not, or to what extent, Yelp violated the church and state tradition. We'll have to wait months or even years for more definitive information.

For consumers, the question now is how far to trust Yelp. Has it morphed from a trusted source of reviews into a just a directory? When, for example, you look for a Greek restaurant in Peoria, Yelp returns 10 results. Presumably, those names, addresses, and phone numbers are accurate.

But what you don't know is (1) Did Yelp inflate any star ratings in exchange for a paid ad? (2) Did Yelp delete negative reviews from restaurants that paid? (3) Did Yelp highlight negative reviews on restaurants that didn't pay? We still don't know those answers yet.

Meanwhile, the lesson is clear: By all means use Yelp as reference if you're so inclined, but keep this caption in mind: "Caution: Possible Manipulated Data."

You Might Also Like:

 9 New Travel Apps and Updates You Need Now

 8 Cheap Ways to Kill Time During a Layover

 World's Best Airport Hotels

This article was originally published by SmarterTravel under the title Yelp May Be No Help to Travelers.

Follow Ed Perkins on Google+ or email him at editor@smartertravel.com.

All products and services mentioned on Airfarewatchdog are independently selected by our team of expert travelers. If you buy something through our links, we may earn an affiliate commission.

More Stories You'll Love