Perhaps I should point a few things out.. if you look closely at the names I gave out, along with a few others.. You'll see that it's not people being stupid with their money, in a general sense.
From the looks of it, RMT are trying to push up the prices of various high-demand items in an attempt to gain money. If you are one of the people who typically sells these items, heavily undercut them to return prices back to normal. They may end up undercutting you, but in the long run, it helps the economy overall. Yes, it may hurt you by having to lose 20k if they end up putting theirs at 130k or so rather than 150k on an Assault Earring. But would you rather end up paying the higher price on an item you want as well, or pay the lower, more stable one?
I guess the point I'm trying to make here is that in a game like this.. you really do have to look at things in a broader sense when you go with the jacked-up price like this. I know that QCDN only covers a minute portion of our server's population, but in situations like this, word can easily be spread around one way or another. It's just a matter of whether or not people are willing to actually take the time to let others know that 'Hey, these guys are hurting the economy. Keep prices low so they don't stay in business.' Show them we don't want them around. I know I'm repeating myself here.. but yes, chances are, they will severely undercut you in return. But that's why you just keep the prices at a steady rate as best as you can without letting them get to you.
Situations like this are a mental game that requires patience and focus. You have to keep yourself from becoming to frustrated and enraged. They know how to play the game and screw our economy up for their own personal gain. Is that what we want to give them? Or will we fight back, spreading the word to let people know to continue to keep the prices steady, regardless of how they decide to fight us? If SE can't do anything about it, that's when we have to sit, think, and come up with a way to alleviate this problem.
Edit 1: Yes, I know I'm a bit of a optimistic theorist on this matter, but I can't help it. I'm tired of people just saying 'nothing that can be done about it'. There is something that can be done, but no one wants to do it.
Edit 2: Heading to bed for now... wonder what this will look like tomorrow...