It's widely known that the market is used by RMT to earn and traffic gil. It's also why RMT teleport hacks are being used all over the world to farm gathering nodes as well as stealing kills on anything that drops crafting materials.
I know no one wants to hear this, but until they solve the problem...they should LOCK the Market. No market means RMT lose huge incentives and resources to do their thing.
If I'm wrong about this making things harder on RMTs please let me know(it's just how I see it) but if you just don't want to lose Market access because you won't be rolling in dough I'm not interested(but feel free to post anyway).
I buy and sell on the market regularly myself so this wouldn't exactly be a cake walk for me either but as a crafter/gatherer it would make acquiring materials from creatures in the world possible w/o having to buy them in the first place.