I usually spy a ton of them everyday in Limsa, especially early in the mornings and all level 50 with nonsense names. You can find them easy enough through "player search". RMT salers are a fixture of the game. Players report them and then there are two more to take it's place. I came to the conclusion the bots you see are part of the RMT team. They have to get the gil somewhere don't they? I don't see any quick fix in the near future for what has been going on for many years. Not just in this game, but from the beginnings of MMO's way back when.