I'm not in charge here, but as the judge on Celebrity Deathmatch says, "I'll allow it!"
I'm under the impression that the majority of posts should be in english, but that from time to time, it's okay to post in your native language to help someone with low english skills. I don't think we're trying to punish foreignors. I think the idea is to keep the forums on-topic and understandable by 90% of the readers 90% of the time.
Ask him to ask for help in general support next time
