They really will have to make a movement soon to keep the mentality of the player base (generally) in line. FFXI wasn't as bad, from the mental state. RMT dominated numerous parts of that game, but their presence was only found out in the field, rather than in towns (albeit you would still see them). That's because there really wasn't any active advertisements going on. It kept that game from feeling like a typical F2P MMO because of that. Plus, with the mob difficulty and whatnot, it was fairly easy for players to MPK the bots/RMT/hackers.

The problem was that they took too long to make a noticeable move. People (myself included) easily got away with using hacks as a result. It becomes a fulfilling enough action once the players needs are satisfied. It just can't hit that point for the offenders, otherwise you're too late. The same mentality goes for gil buyers. If they can easily get away with it, and the RMT can easily fulfill their orders before getting banned/shutdown, corrective action is pointless. The idea that they know they can get away with it has already been planted. The damage is done, and it's there to stay.