Minecraft wiki entry for Crowdin, associated text: Mojang may promote a user to proofreader if certain requirements are met (e.g., user having a good amount of experience, high and long-term engagement, good attitude and reputation, language needing more proofreaders etc.). Because maturity and professionalism are two essential requirements, proofreaders have to be over the age of 18.[2] Typically, each language has 1-2 active proofreaders.[4]