Here's a thought: The Gil Spammers use a permanent account to farm the Gil etc, and because accounts get banned for advertising and trading the Gil, I believe they are using the 14 day free trial on a new email address, so when it gets banned, they are not losing anything. I think that if they limit chat options to /say and /party only on trial accounts, the spammers need to buy the game to spam their adds, making it so they actually lose in real life for their annoying actions.