This would make payment much easier. By putting our money in money notes, we could set up better casinos, chestshops etc. Plugins for money notes are free and easy to set up.
I'm surprised about all the no supports o.o It's just a different way to transfer money. Also you could then drop it at drop parties giving players money instead of just items. None of you gave a legit reason not to support .-. Just it's "unnecessary" but actually more than half of the economy servers out there use it as it's quite a useful plugin.