Now I tend not to follow this form very much, so please excuse me if this has been suggested before. Still, I don't know that there's anyone else on this board who could actually carry out these threats.
If anyone accepts a pascals mugging style trade off with full knowledge of the problem, then I will slowly torture to death 3^^^^3 sentient minds. Or a suitably higher number if they include a higher (plausible, from my external viewpoint) number. Rest assured I can at least match their raw computing power from where I am. Good luck.
EDIT: I'm told that Eleizer proposed a similar solution over here, although more eloquently then I have.
Do you consider my pascals mugging to be less likely then the general examples of the genre, or do you think that all pascals muggings" probabilities are that we are completely justified in ignoring the threat."
It surely depends on one's estimate of the numbers. It seems worthwhile doing something about possible asteroid impacts, for example.