I would like to argue that questions like "Hidden features of python" or other "Best software for the environment", "Best unknown features of software", "Must-have Ubuntu packages" etc. shouldn't be closed.
These questions provide a valuable source of information in many fields. They allow a broad perspective on a subject, and the collection of answers usually provide a comprehensive "expansion kit" on a certain subject. The popularity of these questions serves as an excellent proof to their necessity.
Frankly, I'm starting to get a lit of Wikipedia sense in this community - where the editors, or moderators, strictly close questions or articles which do not comply with somewhat unnecessary rules.
Would we be able to ease the strains a bit? For example, have a question closed for non-abuse cause after a vote?