I love P2P pool, yes that is a great plan, but manufacturers are too greedy and want all of the profits. However, we should be DDOS every large miner constantly making it hell to scale as one entity. Make the cost of doing business as a large miner not worth it.... better to sell your miners to people and try and make money that way.
Encouraging a more combative environment instead of a collaborative environment can lead to potential consequences. I>E> Right now bitfury has indicted they are going to sell their new chips to the widest group of people to insure decentralization, similarly some chinese mines will lease hashing power to their competitors in solidarity without profit if there is a power outage.
Encouraging DDOS attacks will break these bonds of solidarity that lead to greater security.
There are other incentives that naturally promote decentralization that we can focus on -
1) The costs to secure a large mining farm are much more than 10k routers with mining chips in many homes. One requires no extra security, and the other is a target
2) Centralized mining farms have to deal with excessive heat which requires cooling and elaborate ventilation costs while thousands of individuals with small miners can recycle the heat and not worry about excessive heat
3) The liability of fire and damage from failed cooling systems is large with a mining farm , vs almost no liability for millions of small utility miners
ect...