Riot Games has taken steps to improve the atmosphere around their popular MOBA, League of Legends, and are doing so by closing down the game's public forums. An official post by the studio explained that move was to remove "unwelcome drop-ins and toxic behavior".
The official public chat rooms have grown rife with RP sellers, scammers and Elo-boost spam. The default four rooms we established can be used by a tiny fraction of our players at a time. Given the number of League players, most conversation spills into private, community-created rooms.
Unfortunately, private chat rooms and even the awesome community hubs like Dominate Dominion and Summoner School lack moderation tools beyond the ignore button. While the experience in private chat rooms is better than the public versions, we still want to provide tools to address unwelcome drop-ins and toxic behavior.
This solution is only temporary, and Riot will bring the public chat rooms back "as soon as we can", and in the meantime they will work out how to best improve the atmosphere for new and existing players alike.