Rules approvement

omg, all those comments in vain? Not approved? You tricked me into commenting!

There needs to be a rule that makes anything along the lines of "You won't know what to do unless you hunt down my old puzzles and solve them" (which is near impossible) a bannable offense. It'd be like giving one person a reverse-alphabet cypher (the actual name escapes me, too lazy to search), giving a second person one written in a non-Earth language, telling the first person to simply reverse the letters (A=Z, Z=A), not telling the second person anything, and expecting them to solve it in the same amount of time.