It isn't a lot. Honest miners tend to keep what they mine and it never enters into circulation. I know this because I have had many conversations with many miners over the years. Of course, I am talking about the people who have mined for the past ten years, or more, and enjoy to just simply log on and mine. Non-miners won't spend months farming the ore because they like to do other things. Once the newness wears off, they will stop until they need more. Generally speaking, of course.
How is that not a lot? It would take DAYS of mining to get as many gold ingots in one hour at this spot. Even script mining could not touch that number in an hours time. I don't even think you could script mine 20k ingots of any kind in an hour. It absolutely -IS- a lot.
As for what "honest miners" do making blanket statements like that is dismissive. I also personally know people who mine to sell the ingots. I used to mine and sell ingots (and other self acquired resources), its been a while but...
I also honestly can't see this spot not being camped indefinitely. Because there will always be people who want clean up items either personally or to sell, and no other method of amassing points even comes remotely close to this spot, not to mention any who wants to up town loyalty.
It simply makes things too easy, to the point that using any other method to amass points in those systems now seems a bit silly.
With one day (5 hours) of camping that spot you could have any clean up item, or max your loyalty in any town. One day.
Why am I the only one who thinks thats crazy?
The only saving grace is that only one person can do it at a time...