Basically his idea is the market would be fixed if everyone could trade gold currency as opposed to simply trading the items you buy with gold, which doesn't seem realistic to me.
Game's reply that sums up the reason it won't happen, therefore it's a bad idea to implement
If he's talking about set items like M'avina or Immortal king, I cover this in my first post. If he means items like Constricting Ring or crafted items then I should of explained 1 Key of the Old Ones = 1 High Rune, which is what most people want when asking for gold.
I said this because literally 0 people buy runes with gold, unless the ladder freshly resets like Brimestonejack pointed out.
My approach to the high rune economy is related directly to what you do with and how you obtain: High Runes. Gold plays practically no role in this because I know on average 250 gold, meanwhile Ber rune costs 800 gold at Hadriel.