As we all know, the server has been ongoing for years now. Lots of materials, potions,rune equips are piled up and we have only limited amount of players. The demand for supply is really low, the only way to keep demand going is pkers and skillers both benefiting from economy. i suggestion admin/mod to buy out those piled up materials at reasonable price and destroy them to keep supply.
1. eg. Mod/admin spends 1b or more GP to put buy in AH for oversupply items at reasonable pricing (mods/admin to deemed it)
2. After oversupplied items are purchased, Mod to destroy them.
3. With items amount went low, hunting for herbs/fishings for supply, demand for potions, needs for rune items will improve.
4. Economy will be more lively.
Ps. i believe players are concerned about flooding of gp, but i will say no matter how rich a player can be, without supplies, GP is just a figure.
Above is my personal opinion, there might be better suggestions out there. But this probably is the least requiring any coding works.