I'm specifically referring to Is obtrusive JavaScript required to support a feature of AngularJS?, in which a decent conceptual question about "obtrusive" Javascript was asked, only for the OP himself to discover an answer already on Stack Overflow.
Since we can't close it as a duplicate of an SO question, what should we do with it? Ideally I'd like a solution that doesn't involve that user losing reputation, since I don't think he did anything particularly wrong, but the question probably shouldn't be left open either.