Metacritic has been criticized for converting all scoring systems into a single quantitative percentage-based scale. For example, an "A" score equates to the value of 100, an "F" the value of zero, and a "B–" the value of 67.[1] Joe Dodson, former editor at Game Revolution, criticized Metacritic and similar sites for turning reviews into scores that he found to be too low.[2] Doyle defended the grading system, believing that every scale should be converted directly to that of the website, with its lowest possible score being 0 and the highest 100.[7] Further criticism was directed to the website's refusal to publicize how it aggregates scores.[3]