Blizzard Nerfing Mage boosting is fine. But while u are at it why dont you change BRD so it wont have 100 Bots farming it 24/7? And other ways botters made gold. :
WoW: Bots in Burning Crusade Classic - zig neue Farm-Optionen
Ingenious Players Use Toys to Break Botters - Wowhead News