in fact the dungeon nerf is best that could happen to profit botters.
following nonsense is just my opinion. but it makes sense.
reason for the goldcrash were the 100+ stonecore bots per server. generating 400+k gold every hour. that was enough to feed all demand.
how did this stonecore bots work? 1st they were able to walk thrue walls, everybody saw it. the tool they use is called HBHelper. A public avialable paid hack that allows you to walk thrue walls and other "nice" things. I strongly recommend not to use this tool! It will get you banned within hours.
Next thing: It were regular accounts first. Bought over rssian IP for 99rub (about 2us$) don't believe? pm me, i will give you the skype contact to the person who sells them. Same person gave me some more insight. Again. If you don't believe, contact me, i will give you the skype details.
After those 2$ Battlechest accounts were fully functional they were updated to WOD by fraudulent methods. level 90 boost was activated, and accounts were able to farm stonecore for about 10 hours.
After 10 hours, blizzards security system woke up, and banned this fraudulent accounts.
What happened in this 10 hours? it were 10 hours of 4k/h meaning 40k gained . price droppet to 0,07/k (euro) so it was still 2.80 euro. So the fraud gold botters got about 1$ profit per account per 10 hours (2.80 euro turnover - 99rub regular paid wow account). remember they didn't to it with 1 or 10 accounts. it were 100s on each and every server. 10 servers, 100 accounts means 1000$ profit in 10 hours.
now that blizzard nerfed the dungeon loot, these fraudulent companies are not able to get their investment returnet. before 4k/hour, now 1.5k/hour. 1.5*10 hours = 15k in an accounts lifetime. this 15k are not enough to pay the 99rub.
so we will get less gold. but the goldprice will raise again after chinese stocks are empty.