What i dont understand is if people didnt get prestige from suicding warrios at high lvl npc's would they do it..the answer is no, because theres nothing to gain from it other than losing troops..now because you can get prestige from it at a small cost of warriors which is clearly not the way the game was intended they continued to attack having no intention to conquer, no intention to get resources, clearly to get prestige as cheaply as possible. There may be legitimate people who were sending warriors to soften defences and then sent bigger attacks to conquer, but i would imagine that was a small number in comparison to the prestige farmers exploiting