There was a time when RPGNow (prior to the OneBookShelf partnership) mandated nothing but positive, 5-star, reviews by staff reviewers (now called "featured reviewers") after a number of publishers threw absolute tantrums over getting anything less. I'm unsure if that policy is still in place, but it led to me parting ways with RPGNow (I was the head of the staff review department, drafted the original mission statement, and hired the original staff reviewers). I still don't trust featured reviewers there on the off chance that the policy is still in place.