My question Open Source Math Library for F#? was closed for being not constructive. My guess is that it could have been worded better (though it was fine at the time). But here is my question:
Shouldn't voting or closing a question need a bit of awareness about the field itself, rather than a syntactical check?
In this case, there are not likely to be arguments or extended discussions because there are almost no open source f# libraries, so given the question there was (and is) only one answer at the time (math.net). The fact that most answerers supplied commercial non-open source answers would tell that.
In effect, the question is one about existence, and domain experts would know that. Shouldn't that count?