Even the best of internet translator sites make a mess of translations. Sometimes you can't understand a single sentence that comes out from such a thing.
I think it would be an unnecessary effort, and a crapload of effort at that. The game is meant to be played in English, and that is to make it consistent and easy. No translator can ever be perfect, and our Game Masters would have a hell of a time helping someone who "attempts" to type in another language, or dealing with misbehaviors from sneaky players who will learn how to abuse the translator system and leave vulgarities unchanged from their original form.
It's an English game. As unfortunate as that is sometimes for some people, I see no feasible alternatives.