The big problem that comes with non-english speaking playerbase is that they can't communicate with admins in case of a rule violation. We would have a divided playerbase, because non-english speakers can't interact with existing players.
As others have pointed out, it takes a lot of work to translate the game/mod into another language. Maybe translating only the most important things would be a good compromise? Basically only translate commodity names (they're self-explanatory anyways) and things that come up the same nonetheless (such as turret stats etc).