Finding ways to game the levelling system is fun. Even just observing what other people come up with is fun. Have a look at the open games tab. It's a mess. One big hilarious mess. Notice how many duel-map template variants there are. It's all over the place.
Did anyone not expect this to happen? I'm pretty sure the storm will be over in a few days. Duel games are probably going to stay with us for a bit longer, though.