Support in different languages means also you need the people to do so. It also means many threads dealing with the same problem. And we already have enough of them in just one language imo. If some truly doesn't speak English (not even a bit) they can always use one of the many free online translators or find a friend who will translate for them.
The more languages, the more confusion, the more work it takes to help people and less people will get accurate help like we give now, imho.