Those low prices on the market board...

[Taebok]

I'm not seeing any economies destroyed. I've still profited quite well so far this patch despite selling many items for less than I did in the past. Perhaps you're focusing on the wrong items to sell or have your per item profit expectations set too high?

For the economies to be destroyed, the majority of items would need to be selling below the sell to vendor prices. While there is a small percentage of items that are that low, most items are still far above it.

When items that for years have been selling, and selling briskly, at 200-600k are now being sold for 20-40k, and in a lot of cases, less than vendor price, the economy is broke.
And for "maybe you're selling the wrong items".
It's right across the board on everything.
The only things not selling for next to nothing are items bought from the mog station that no one buys anyway.
(30 million for a pink tree anyone?)

SE took something that wasn't broke and fixed it.