Re: german-language translation ?
I guess there will be exactly something like that. http://www.buddypress.de “sucks” because no one is responsible since Dennis left Inspyde (the guys behind buddypress.de). If you are interested in collaboration you could join the community and become a moderator ore something like that.
As DJPaul mentioned anyone can edit the codex pages (as you can see i did it for german language site).
You can find the “edit” link in the bottom left corner once you are logged in.
i’m really looking forward for the de.buddypress.org site. I’m gonna write Dennis if he needs some help. Hope to see you involved too.