Actually, I consider spawners as not one of the main problems... There are public warps for many farmable items like cacti... That way most Minecraft items lose their values making the trade of those meaningless and those that have a good knowledge on farming those useless... I don't know if you agree, but I consider this as an economy problem... As for what can be done, the radical solution would be to close these warps, but i guess that's not an option... As for now, it would be good if, as mentioned above, minetown's economy was made a little more *challenging*!