I ran into a question that was originally written in Indonesian: Windows 7 not starting correctly on Toshiba Satellite L640
I successfully attempted to salvage the question by using Google Translate and rewriting the question from the translation. I also took steps to ensure that the question author could read the answer by including a Google translation as part of my answer as well as posting a comment in the user's native language on using Google Translate.
However, should we attempt to support non-English users this way? I'm not sure about the long-term impact of doing this.