That was 5 years ago, when Prodo gold still sold for 10-15 a mil and was sold constantly.
Then they add AoS, when you could go two shot a dragon.
Then Samurai Empire which increased luck with bushido.
Last but not least ML!
Which brought forth the days of Swoops, easy quests to get strongbox's.
AND! The cu Sidhe for those AFK tamer farmers

Gold is usless now and in abundence, you cant make money of it anymore unless you play Siege.