'Annoyed' seems an understatement. It is likely that there will be more such attacks in the future if they continue their current policy.
Advantage? They are in trouble and they lose money :twisted:
Disadvantage? The whole thing can backfire. They might brand P2P as the cause of this, you know discontent, blah blah, Though I admit they will have no proof that that hacker did it to you know somehow support P2P.
But since when was that their concern? ( I hope you erm, undestand.. what i am saying)