User blog comment:The5lacker/Going smiteless/@comment-5556439-20130630200158/@comment-9369480-20130701204940

Your leash statement hurts to read. Taking two others to help you take out one buff severely cripples the lanes and allows your opponent to take an advantage in both CS and push if the enemy has a strong early game (like, say, Pantheon top could take out a handful of creeps before you even get back to lane).

Also, having two others around as leash will slow the jungler's progress as far as leveling goes. Your help would still likely be within range of earning XP of the buff creep, thus giving the jungler only 1/3 of the XP he needs. That's why smite is useful on any buff- use your leash to bring down buff creep to within just a couple hundred health, whittle away for a bit, then smite to finish it off. Keep all of the valuable XP.