He tried something, he got caught,now he owes 400 BTC and is trying to refocus the discussion away from that fact.
QFT
Sure he does. He could even 51% attack p2pool to get up to ~200% PPS (at the expense of everyone else).
Could you please explain a 51% p2pool attack in more detail? I mean, lot of people believe, that p2pool is the most decentralized mining option available, and you state, that a 51% attack could be done to p2pool?
An "obvious" one would be making it so nodes ignore a forked chain more than 'X' shares deep, if it all pays out to the same address (indicating somebody forked from the chain to build a longer one that only pays themselves), though all that you'd have to do to combat that is cycle through addresses when making your fork.
In other words, p2pool users would be mining a block which pays almost the entire reward to the attacker, even though they've only done 51% of the actual work.
The difference is a 51% attack on the p2pool chain would be immediately obvious to all miners monitoring it - p2pool finds a block, but no payment is made since the attacker has substituted their own btc addresses into the sharechain, instead of the legitimate miners.
In this event, I imagine miners would just jump ship, if a better solution isn't implemented by then. Until then, though, it still has its advantages.
The "obvious" defense is too easily countered by new addresses for each block. Addresses are zero cost.
