"JOB OPPORTUNITY: Assassins and mercenaries required. Must be proficient in game theory".

In reality they will torture you until you stop decrypting partitions, and then a bit more of special torture, just in case.

If they don't understand game theory, that just means they will act sub-optimally. In any case, the correct strategy for the user is still to not decrypt any partitions, since, as you say, the sooner the user stops decrypting, the sooner the torturers give up.

I don't think either of has met someone who engages in actual torture, but I imagine they rarely, if ever, “give up”.

That seems like a pretty foolish assumption to make of your adversaries/captors.

If a torturer has good reason to believe you have valuable information regarding subject X, they'll simply torture you until they possess that information or you die. If you don't possess the information, you're screwed. If you do possess the information, it's likely that they'll stop after they get what they're after.

A state liable to torture you may simply kill you instead. Or torture you and kill you, even if it serves no particular purpose.

If you're in the business of protecting your secrets against torture then you need to also be protecting them against death because that is grimly inevitable.

"I don't think they wanted me to say anything. It was just their way of having a bit of fun, the swines."

That's not really making the case for clever crypto solutions. Assange is rotting in prison and is probably going to die in the US in the near future. What secret information could he be protecting at this point?