This question got migrated to StackOverflow but it started me thinking about the nature of this beast.
I would presume that if they had much more than those same five lines of code then the problem they have could well be a bug in the code they have written, but if it's just the same listen() and "Hello, World!" code that everyone uses, it would be much more like just another http server question.
What's the defining line between whether a Node.js question belongs here or on StackOverflow (or somewhere else)? Are there any deciding factors other than the amount of code they have written?