The mod explanation for the Neural Net question is revealing: "This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet"
That's a canned response. When users vote to close a question they have to pick from a list. When a question is closed the most popular reason for closing is automatically shown. I guess it tells us that people will vote to close even if a question doesn't fit into any of the close reasons, and that a previously "too broad" question would be closed as "too narrow" if you tighten it up.
That question clearly fit the canned reason for closing. It was a homework debugging question on a tight deadline.