If you do complete the arbitrary mystery (which is like any of OSRS gold those additional random-event puzzles you may get, just they don't give you suicidal thoughts) then you're given resistance to that group of players and for another half hour. Considering randoms happen fairly slowly already, this will add some fun into the game (you cannot be attacked or interrupted by anything - except that you real life siblings - while still doing the player-caused puzzle).
If a person prods a player who responds successfully to the puzzle more then three times, they shed mechanically and must wait 1 hour before having the ability to play the game . For the person in the Macrokilling team to get the maximum successful prods (they will likely aim for obvious macro ) they'll win the joint bets, including up to a possible 500k or less. The typical game lasts 15 minutes and macrokill players cannot perform any tasks other then prod different players while wielding the prod stick (eliminating the pole removes you from the game, as does logging out for longer then 5 minutes).
Players with people chat or anything else off may have no excuse as the mystery pops up no matter what you have activated. You can prod individuals everywhere but depending on the surroundings or threat of the region, the mystery won't be as intrusive or not existent at all.
Whether this proposal, or any variant of this gets through into the match; I then expect the mystery to vary depending on real player tolerance of buy RuneScape gold this prod charges (I hope the end puzzle is actually fun for the players receiving a prod) and just how well actual macro's can respond. Thanks for reading!