I don't even know what that exploit from the title is, but my latest PT with patch 6 seems to get me quite a bit LESS gold than the previous one in patch 4 and 5. In my 2nd PT, I couldn't spend all my gold also.
even the 20,000 gold for the diabolist was no problem to cough up.
But this last PT is quite different. I can't buy all the armor I want without scraping every coin and going back and forth to camp to collect sellable stuff that I looted but couldn't carry.