The main reason the language rule was created was to get some people (not all) to speak english as a PREFERRED language in the server, not to make everyone speak english as this game is played by people all over the world, if you don't think they can speak it fluently, ask the person can you speak english at all? If they type back in another language then most of the time they can't. If caught speaking english fluently at another point in time, then obviously they can be warned for speaking a different language. There has only really been one player that has been banned for talking in different languages, only because he was purposely doing it to be annoying. This rule shouldn't really lead to the banning of a player.