Given that many of us here double as forum moderators for our own languages, I would like to encourage all to keep informed about what is going on over at http://make.wordpress.org/support. Please feel free to contribute your own opinion, which is not only welcome, but actually needed.
One of the first examples of what you can use on your own forums is the list of Stock Answers to common problems of users not following the posting rules on the forums. The conversation which gave birth to that is here, do read it.
I suggest that each language’s moderation team should translate those answers to their own language and use them on their forums, adapting the links to their own version of the Codex, if one exists. Come to think of it, it would be brilliant if the forum rules were to exist for every language that has a forum.
A conversation about the Codex has also just begun and I think that this is the perfect opportunity to have the issues of locales other than English addressed from the start.
In order to post on that blog, you will need to be added to it. Should you want to, please let me know, so that I can do that (keep in mind that only forum moderators will be added)