the moment graal adds trading is the time when graal gets filled with "gold spammers".
People may say no one is going to farm gralats to sell for cash because they would have to be cheaper than gralats packs and the profits from that would be very small(3k gralats an hour is like less than $1 an hour)
but the truth is, gold sellers never actually earn the gold by actually playing. They use bots to do it for them.