I stumbled upon this question
Is there a minimum length to consider a question 'a good one'? This question seems... fairly self explanatory as it is, but my first reaction was to think of it as an automatic 'needs improvement' (I didn't flag though).
Should we flag these questions or try to promote larger questions, or should we just let them be if they are good enough? Which leads me to the next question. Is it even possible to explain a good question in just a line or two, here in SE/SO?