Final Fantasy XIV Database - Ffxivpro.com

They need to seriously go after the gil BUYERS and not the sellers. Sellers are only half the problem. I guarantee you if you go after the buyers more then you go after the sellers, there would be no RMT. Players hear about 2,000 accounts a month that are banned for BUYING gil, they're guaranteed to think twice before they buy gil. When's the last time you heard SE go "This many accounts were banned for buying gil." Never.

But SE isn't about to spend extra money to ban players and lose the income from those accounts.

RMT are a benefit to SE. RMT keep buying login keys to get another account after it's been banned. If anything I think they break even when compared to the money that RMT are bringing in by buying accounts and the money it takes to combat RMT.