There probably aren't enough (perhaps any) moderators who speak those languages fluently, so there wouldn't be anyone to help with problems posted in them. However, you never know until you ask. Though I think this thread would belong in the "Comments and Suggestions" forum, NOT in the webdesign forum. If you make this suggestion in that forum (or it gets moved there by an admin) it's possible that a forum in one of these languages will be created, if enough members vote yes/offer to help.
I dont believe that its that there arent any mods, its just the majority of people are spanish. If there was a german forum, I'd be happy to attempt to moderate it, cause Im currenly learning german, the problem is that my german isnt too good.
EDIT: Oh, and btw, I moved it to comments and suggestions
I dunno if admin would let you, he'd have to create a german forum first, and he might want you to have more than 6 posts. I quite honestly dont think he'll want to create one. It would be nice though, but I think its a majority of english and spanish.