Well, not exactly new. Your Devolutionist stumbled across a blog called WingNut Comments the other day and it gave him an idea for the next season of Survivor.
Survivor: Blog Commenter!
Here's the idea: lock a dozen people in their own small room with a four-pack of Red Bull, some of that dehydrated food astronauts eat, and a dedicated DSL line. Each person must spend a certain amount of time reading and engaging with the commenters at certain sites: Free Republic, Hot Air, Red State, WND, Newsmax, Reason, just to name a few off the top of my head. You could rotate it, give each person particular sites on particular days and have them engaging each other on the comment boards without knowing it. One person could secretly be designated as the Imposter Wingnut, writing the most outlandish shit he or she can think of and trying to drive the other contestants completely nuts.
There could also be challenges like the Troll Challenge, where an individual has to play Imposter Wingnut on the comment boards of some of the more earnest liberal sites: HuffPo, DailyKos, Firedoglake.
Contestants would be eliminated as they crack and beg to be let out of their room, smash their computers, put their heads through the wall, curl up in the fetal position under their beds while crying and muttering gibberish to themselves, and so on. Maybe we even put them on Suicide Watch and take away all belts, bedsheets, and shoelaces for a time before elimination.
Hey Mark Burnett: call me!