What I mean by "QI also as currency" is, mostly, being able to trade QI.

Dueling for QI, e.g. /duel 100 TC (dueling for 100 TC)
/duel 20 QI (dueling for 20 QI)

Paying for Orc Force, e.g. Costs 160 TC (IDK if real price, just an example)
Costs 15 QI

And then just being able to give away QI. I really don't see how this could be a problem, and why it isn't already implemented. Though, I can understand the creator(s) meant QI to be earned, but then why can you purchase it from the ToriShop?