Kinah is the tax every Aion 2 system collects: enhancement attempts, crafting, auction trades and progression consumables all drain it faster than casual play refills it. The gold-seller shortcut carries the exact risk everyone knows about — launch windows are peak ban season, and receiving traded currency is the detectable side of RMT.
Farmed-on-account Kinah removes that surface entirely. A booster plays your character through the routes that pay best on your server, the income lands as ordinary gameplay earnings, and the by-products — materials, drops, crafting stock — stay with you on top of the target amount.