That statement on the wiki is ridiculous if you ask me. How can you justify saying something is perfectly fine if you RP it, but goes against the medieval atmosphere of the game If you use the game mechanic for it? That makes no sense.
It is possible to hold a "fake" duel while making certain that no one actually gets hurt - see LARPing for example. You can RP that.
However, that is not what the game mechanic duel does. Game mechanic duels are to hurt people. When you press that button, you are trying to kill your opponent. You can't press the button and then argue in a RP that you didn't really mean it.
