Rare Roblox Usernames 3 (RRU 3), or more commonly known as Rare Roblox Usernames X (RRU X) is widely recognized as a distinguished collection of groups that focus on a specialized type of ranking system. The X in RRU X signifies the third group in the series of our ranking groups. RRU's ranking system evaluates usernames based on several key criteria, including the number of letters in the username, the meaning or reference it conveys, and its overall relevance. GROUP WALL REGULATIONS - If you cannot abide by these rules you will be punished. ADVERTISING is not allowed and will lead to an exile if attempted. COMPLAINING about your rank or not receiving a rank is punishable offense and will lead to a warning, but if said person were to continue this infraction, that would lead to an exile.