Octorok said:
Er... No. Poster feels other people's pain. IE - unless his torturer has the same condition, which is an almighty coincidence, then the poster will still feel it.
It would make him easier to torture, in fact. You can just take him to a hospital and hang around.
Say, for example, you're tied to a chair by mobsters. If you say, managed to kick one of them in the balls before they got to work on you and then exerted sufficient focus and willpower, you'd have a stinging pain in your scrotum without the agony of being dismantled by a baseball bat.
But that's just speculation, based on my experience with such happenings.
EDIT: The hospital thing was a stroke of sadistic brilliance, though. Nice one.