I want to ask if some people in my guild are non-native speakers. I was thinking of going with “where are you from?” and hoping the answer is Germany (or such). Maybe ask about a time zone.
I think it would cause unnecessary unhappiness in guild chat if I were to ask directly. If the person is a native speaker, his natural follow-up question is, “Why do you ask?” My other guesses were “small child,” “illiterate,” “stupid,” “lazy,” or “family pet”; “foreign” seemed like the most charitable assumption.
(“Foreign” is not a bad thing. It is an explanation for why they cannot speak English very well. My Spanish isn’t so good. They have worthwhile thoughts that they have trouble expressing. If he is just stupid, that is really the best I can hope for.)