Rate players on their behaviour.

We have something for that, basicly: you can "report" a certain player for Harassment: Offensive Language - This category aims at punishing language that employs vulgar, obscene, sexually explicit, or racially, ethnically, and otherwise objectionable language. Harassment: Verbal Abuse - This category aims at punishing language that is directly targeted at another player in order to hurt, insult, or intimidate them. Griefing: Intentional Feeding – This category aims at punishing behavior that involves deliberately dying to enemy champions or turrets to make the opposing team more powerful while putting your team at a disadvantage. This is not intended for genuine mistakes or lapses of judgment! Griefing: Assisting Enemy Team – This category aims at punishing behavior that involves deliberate collaboration with the enemy team, i.e. by providing them with positional/tactical information that they would have no access to otherwise. Refusing to Communicate with Team - This applies to any Summoner that refuses to use chat or pings. Please note that this is not meant to be used in cases of language barrier! Leaving the Game/AFK - This category aims at punishing behavior that includes logging out before a match ends as well as standing idle for long periods of time and refusing to participate. Negative Attitude - This category is reserved for unhelpful or self-centered attitudes that go against the principles of a team-based game. Inappropriate Name - Select this option if you see a Summoner name that is falsely indicative of an association with Riot Games, contains personally identifying information, infringes on the proprietary rights of third parties, or that is offensive, defamatory, vulgar, obscene, sexually explicit, or racially, ethnically, or otherwise objectionable. This also applies if the name uses a misspelling or an alternative spelling to circumvent this restriction on Summoner name choices. Spamming - This category aims at punishing behavior that disrupts the flow of conversation with repeated postings of a similar nature. There is also a special report category which does not create a Tribunal case: Unskilled Player - If you feel that a Summoner is not playing on par with the skill level implied by the matchmaking system, you can use this report.

/r/leagueoflegends Thread