Many users, like me, are spending a lot of time and effort to create original and creative riddles. Whereas other puzzles seem to be either copied form somewhere else or look like old riddles passed on through generations (which explains why they sometimes get solved pretty fast).
I can see there is no point in defining rules to allow or disallow certain types of riddles but I'd feel better about both writing and solving riddles if there was a tag indicating whether a riddle is original or not. There is some magic to it, at least for me there is.
What do you think?