People aren't going to try to sue nefario. What they're far more likely to do if he continues to piss them off with his "fuck you" attitude is draw his activities to the attention of the very authorities he was hoping to avoid getting scrutiny from.
Good Luck to anyone that tries to push that through. It will be a difficult path for anyone that tries to grab the authorities attention for someone who has zero-to-negative assets to forfeit.
I think it will be difficult to get the authorities attention for a pirate figure; the bulk of his assets are in internet money.
The SEC already is after pirate. Its not that they dont care. They are searching more infos, victims and so on to create a strong case. You can provide info here:
https://bitcointalk.org/index.php?topic=120119.new;topicseen#newAnd regarding nefario... you can be sure that at some point someone is going to government. And this would make it worse for all of us but mostly for nefario. So when he keeps hiding at his position his fear to have to pay his errors out of his own pocket wouldnt be the smallest problem for him.