Every other day, a new question about modes arises. Or better the same question rephrased, some variation of "are [mode] and [parent major scale] the same?".
Would it make sense to build some community wiki Q/A base, and to point the new users there every time, rather than fragmentise the knowledge about over every single key people ask for?
One answer per mode with song examples and chord/melody outlines would be very helpful I think.
The concept applies to other tags of course, for instance the infamous "why does this chord progression work" - because your ears like it!