I understand your frustration, I use to share your disgust for GDKP, but I assure you that GDKP isnt actually the problem here.
The problem are gold buyers, and the only thing that can be done is to perma ban their entire battle net account for even the smallest purchase.
If GDKP were the source of gold buying woes, and I assure you I formerly thought this also, then Whitemane should just be slam packed full of botters, but we haven’t really got any. We did at one time have a botters problem, but this was rectified in Nov 2023 with an absolutely massive exodus of gold buyers and all their botters that follow them. They moved from SoM, to Era (6 months on era) then to SoD and Cata and now infest Fresh.
The botters have tried after to get a foothold on WMC but can’t because gold price is high, and GDKP pays way too well for gold buyers to ever keep up.
This is why gold sellers now hate GDKP because it killed their market almost in full on WMC.
Gold sellers are fearful that if GDKP is allowed on fresh that their market based on raid consumes also dies.
Basically if banning GDKP did work, the botting problem and the gold buying problems on SoD / Cata / Fresh would not exist.
Meanwhile in WMC We have GDKP, tons of raiders and no real gold buying / selling / botting issues.