This could be true, but I personally found negative reviews valuable. While I'm not familiar with Yelp, I tend to read negative/mixed reviews on Amazon products

This could be true, but I personally found negative reviews valuable. While I'm not familiar with Yelp, I tend to read negative/mixed reviews on Amazon products much more carefully than positive reviews, or constructive criticisms than blindly agreeing comments on HN. I think we all want a "balanced" view, as it's elusive as it gets. While there's no single ruleset to define what's balanced and what's not, I hope we continue discussing it until the end.