Many questions are very dependent on setting. As an example, " What would clever creatures do to protect their lair? " is oriented toward a low-magic d&d-type setting (and the word "neolithic" is mentioned).
The same question could be asked for the future, modern day, post-apocalyptic societies, alternate worlds, etc. These are not system-specific questions, but rather world-specific ones.
Should we have a tagging system for technology levels, magical settings vs non-magical, or any other world-traits? If so, what should it encompass? If not, do you think this will work itself out (e.g. the other supposed question would be called "what would clever creatures do to protect their space station?").