It did change, you barely get any crones from selling drops to NPCs anymore, even accessories. It's much more worth to open a kiosk and sell them for very cheap or feed them to your pet.
Personally I think it's a pretty good idea. Getting crones is fine by farming mobs and by not having people get tons of crones by also selling to vendor is a nice way to keep the total amount of crones in the game low. It integrates pretty well with the rest of the measures they took to fix the economy in this game.