What exactly is yelp telling you? I'm something of a foodie and am stunned at how inaccurate the reviews are for most restaurants. Most of the reviews seem to come from a minority "elite" users who are chronic whiners and come off as terribly immature. Its just incredible what people ding establishments for. "Fries came late, this place sucks! Zero stars!"
Some people think the issue with yelp and google reviews is trust. Its not. Its entitlement and a lack of proper criteria. The types of people who gravitate towards these reviews and become frequent reviewers are often people with poor taste and a lack of understanding of what they are reviewing. They're not crowd-sourced Robger Eberts. They're your cranky local paper's film critic who thinks 'naughty language' is the most unforgivable sin.
If anything, services like yelp have made me appreciate the art of criticism and a lot of my dining decisions are now done via professional critics with good reputations instead of the usual gang of misanthropes and weirdos who dominate yelp.