you cannot remove the ability to sell content from the slaughterhouse. You cut out most of the gameplay at once. If you prohibit the sale of parts from the slaughterhouse, then the players, respectively, will throw out the content, they will not carry goods to the sellers, and accordingly there will be less pvp activity on the way from the mob to the city (seller). If, as you confirm in the first part, this brought a lot of gold and undermined the economy, then why not regulate the cost of parts by mining by ordinary NPC buyers? Why can't you underestimate the cost as much as possible and underestimate the materials received from animals as much as possible? If you do this, then people will have to go hunting more and the value of these items will be higher. It is impossible, in my opinion, to take and cut out a whole part of the gameplay from the game, this is a crazy idea.