A little late, but for whoever pays attention to Final Fantasy XI and what they’re doing to combat gold farming, they recently revealed their secret weapon:

(1)RMT-PWNER V1.337
This is a tool that makes it possible for us to understand the entire flow of gil from collectors to buyers in an instant.
For example, if we enter a character into the RMT-PWNER who we have determined is involved in RMT activities through reports received from FINAL FANTASY XI players and through our own investigations, the tool will act according to the image below.

The image more or less describes, if you even buy gold (or “gil,” in FFXI terms) with real money, then you get banned. Immediately. And the tool that tracks the gil transactions has a ridiculous name.

LOL PWND.