Considering the entire SE network seems targeted towards the English language, I'm working under the assumption that we're only supporting questions asked in English ...
However, I know there are many WordPress users and administrators who are not native English speakers. When they visit this site, I expect a few botched questions and maybe some poorly used colloqualisms and such. However, how far should we go in correcting the language used in the question? Should we fix grammar, clarify terms, and otherwise "clean up" a non-native speaker's original text?
Furthermore, what should we do to protect people who's English isn't up to par from attacks by the grammar police?