Yes, but that shut the question down. There may be interesting nuances left to discover. If we do as you suggested, we would actively "attack" certain miners, q

Yes, but that shut the question down. There may be interesting nuances left to discover. If we do as you suggested, we would actively "attack" certain miners, quite openly. With a time shift, could miners collude to increase the burden on other miners not privy to the collusion? Perhaps ever so slightly?