I suggest a method of horse castration! In all seriousness horses are a valuable asset to any player as long as its fast.. but the server has become oversaturated with these fast horses. Obviously I was apart of spreading the stats into the world, but we've hit a point where plenty people have them and due to cross-breeding being able to obtain perfect stat horses themselves without purchasing/trading or doing the hours of work breeding like I had. There are a few plugins that do this, but I am suggesting something custom as the team I believe is more than capable and would make something much better in my opinion. A simple idea I had was using shears right clicking a horse would make them unbreedable, therefore making the breeding/trading process more valuable to the economy.
Thank You and Goodnight.