Every deal happens in daylight
This is the boldest rule on the server, so we will say it plainly: direct player-to-player trading is disabled. All of it. And it is the single biggest reason this economy works.
Why we turned trading off
Every RMT scheme, every gold-selling empire, every scammed newbie starts in the same place: a private trade window. Remove it and the underworld loses its front door. It is a real trade-off, chosen deliberately, and after months live the verdict is in: it was worth it.
The World Exchange
Selling happens in one place: the World Exchange. List your item, the market sees it, the sale settles through escrow, and the adena lands clean. One public market means real prices, honest supply, and a paper trail under every transaction.
Watched, always
Every trade on the Exchange is scored and monitored, and suspicious patterns get held before the goods move. A gold seller cannot operate in a market where every sale is examined; that is the point of having exactly one market.
No funnels, no champions on a drip
The subtler economy killer is the funnel: a clan pointing its whole farm at one wallet, or one player with a room full of computers feeding a main. Remove the trade window and the funnel loses its pipe; what remains must pass through the Exchange, where a transfer dressed up as a sale is exactly the pattern being hunted. Add one client per PC, and the box army needs a hardware store. Progress here is personal, because it cannot be donated.
What you get in return
No gold-spam whispers. No "cheap adena" sites farming your server hollow. Prices that mean something, drops worth selling, and adena that holds value because nobody is printing it in a warehouse. Ask anyone who has watched an open economy die: this is what saving one looks like.