HQ item rewards for the 50-60 leveling main and sidequest was a mistake. An item might be worth 100k but anyone without a clue and having got it for free (no materials gathered or bought) can undercut that item basically as he pleases, and when you repeat it, suddenly a ton of gearpieces in the markets and filled with quest HQ items and prices are lower in some cases, than even level 30-40 items. Terrible call.

Something that has been bothering me about the economy is the correct decision of not allowing crafters to not make BiS gear, thus, making players to go and do content, yet allow without punish at all for particular groups of people to sell that content and even BiS drops after a few weeks. Best part is that most of these buyers are crafters, basically getting BiS, achievements and progress through content using gil... Which was what the first idea was supposed to prevent!