Who asks the hardest to answer questions on SO?  And what's the
best metric for this? questions with no answers? fewest answers?
longest delay in answers?  Oh StackDB gurus, what say you?
share|improve this question Why does it matter how hard a
question is? What matters more is how useful the answer will be
to some. If the question is too easy (obvious) than the answer
is not useful (because anyone experienced should be able to know
the solution off hand). But sometimes questions are difficult
because they apply only to a specific audience. A question that
is less difficult but which, once answered, is useful to a
greater number of people, is of more value. –  Billy ONeal Apr
18 '10 at 6:02 Sure... But SO is unique in being a large Q/A set
for which the database is available. It's interesting to see (a)
what the "graph" of difficult questions would look like, and (b)
what those questions would be. –  Mark Harrison Apr 18 '10 at
8:16 Worth noting:
stackoverflow.com/unanswered/tagged/?tab=votes . On the other