I made a few thousand selling legion blacksmithing plate gear on the AH in one day, can't be that hard. Selling boots on my server got me 4k per, the ingots are like 1k. That plus the gold missions in the class hall get about 2 or so if done properly. You can't make as much as these people are claiming, obviously, but you can still make a decent amount if you actually try. Problem is, if you want to get a WoW token and you're not already super rich or buying them with real money to flip for gold, then you're gonna be doing nothing else but making gold unless you have no job and play all day long to pay for the tokens as high as they are now.