All those pools have someone, who if coerced, would do what an attacker told them. How many individual miners are on that pool is completely irrelevant.
Is your argument for security really, "Well, it hasn't happened yet!"
It's your argument Crouton - the 4 biggest pools are 'people' who could fork the network.
I'm saying your argument isn't rational because, the difference between a pool and an individual miner, is that as soon as any pool tried to fork the network, miners would leave instantly meaning they had no hash power and would only get a brief window to attack so not much DRK anyway.
Second, the 4 biggest pools would have to cooperate in the attack which is again unlikely.
It's in pools interests not to do this, they would only control the network briefly until miners left, and they can make more $ providing a good service
This is what history has shown and yes past examples is another valid argument when considering security I think
Anyway, just bringing you up on this, saying drk mining is controlled by 4 people is the irrational argument in my book for those reasons.
We are all dark supporters so dont want to argue, it looks really bad to observers MN owners having a go at miners I think, not what we need right now with hashrate droppping