You would think that most MMORPG players, especially ones in as prominent games as Final Fantasy XIV would know to stay away from real money trading. The developers pay close attention to these types of activities and is a sure way to get banned.
Recently over 5000 accounts were banned in FFXIV for participating in RMT or other illicit activities, and over 800 were banned for advertising RMT.
Just go out and farm that gil yourself, its much safer!