So why would anyone need to make MORE gold?
It's called a gold exploit, but the point is not actually about making gold, it's about getting items. The method I used to use ended up giving lots of gold to the vendor, without increasing my own at all, basically tricking the game into thinking I had paid for an item. You don't actually need very much gold at all, nor is it really that useful.
And... I AM a loot goblin, I force restocks to grab alchemy supplies to fuel my potion addiction. Once the unique items are gone they don't restock, so it's just supplies after the first grab.
EDIT: also, there is one reason to hoard a lot of gold, and it's so you can reverse-pickpocket 30k gold onto an enemy and then smack it with Blood Money. This eats the gold. Fun times.