Foregt attacking the friends in this scenario.
Consider 2 wwk accounts that you plan to attack. The goal is to destroy the wwk village.
First wwk have 25 other villages, second only have 1 village the wwk itself.
You attack the first guy, it maybe a chief or hammer train to do a 0 pop. If you succeed the hammer is forever gone. It cant bite you anywhere.
You attack the second guy, since its only one village it cant be chief attempt. You do a hammer train. You succeed. The village is 0 pop but the hammer is still alive and its going to bite.
This is considering you succeed in taking the arti in wwk village and completely destroying it.
Well, when you put it like that, I don't see why would anyone waste time on building those 25 villages in the first place.