This question is prompted now by this post: https://history.stackexchange.com/questions/10096/a-martial-art-person-who-got-injured-by-his-hand-when-he-broke-so-many-tiles-wit, but it has been simmering for a while:
I understand that this site is open to anyone in the world to post a question or answer, and that is one of great things about the Internet - each of us has a virtual world-wide symposium on their own PC.
But English is the language of this site, and posts in other languages are not allowed. See Can I ask question in Bangla here? .
Having said that, we do get a lot of questions in less than fluent English, which is not IMO a reason to disqualify, particularly if the question itself has merit. Sometimes I will even edit what I think is a good question, to improve the English.
But this question - the martial arts question - is borderline indecipherable, the English is so poor. Needless to say I am less sympathetic in this case than I might be in other cases, due to the question itself. In all frankness, I am bit embarrassed by such a poor question, in terms of both its substance and its English.
And unfortunately, sometimes this problem isn't only applicable to non-native English speakers. To echo T.E.D.'s comment: "This isn't about cultural imperialism, its about being able to communicate."
Should we set some kind of "bar" for English proficiency in questions and answers, and down-vote or vote to close questions and answers based simply on the grounds of really poor English?