"the use of extreme dilatory tactics in an attempt to delay or prevent action"
In the common use of the word filibuster (synonymous with monolog) the action being attempted to delay or or prevent is the other person speaking.
We are having a dialoge and there's no way for me to prevent your from speaking. At worst, we're both guilty of dueling oratories, but I give us both credit for being responsive to the other's posts.
A filibuster is usually speaking that prevents a vote from proceeding on legislation.
I asked you to please not go on and on with your nonsense ad hominem attack on me, thus forcing me to refute it, thus impeding my more important work.
as smooth said, any attack vectors for exploiting p2pool are already in use.
You are too technically inept to understand what was said.
What was communicated is that there is no economic incentive to attack P2Pool because the share withholding attack can withhold income from the pool, but it doesn't gain the attacker that withheld income. Thus no one is likely doing it now. Smooth is incorrect to assume anyone has an incentive to do that now.
However, the attack doesn't cost much (because you leech off the mining of all the other miners who don't withhold mining shares) to drive the income from P2Pool for all the miners lower than they could get from a non-attacked pool. Thus in theory it is a very cost effective way to drive miners from P2Pool to regular centralized pools if you have an incentive to do that.
If Bitcoin implemented oblivious shares then it would not be possible to do the same share withholding attack on regular centralized pools, but the attack would continue to work on decentralized pools such as P2Pool.
So eventually when nefarious interests have an incentive to hold pools hostage (another externality you didn't factor into your Nash equilibrium model), they can utilize the share withholding attack. Then Bitcoin will be forced to finally implement
Meni Rosenfeld's oblivious shares (which he suggested in 2011 or 2012). Then P2Pool is dead.
Much better to demonstrate it now so you can be taught a lesson about how inept you are.