If the reason for PokerStars shutting down the game is indeed due to the fact that control collusion then that's a pretty disconcerting state of affairs since they presumably can't control collusion in other games either. Granted, DoN tourneys may be more vulnerable to collusion due to the format but still...
I agree, but it seems like their 'solution' to closing these is creating the 'fifty-fifty' format. Not sure if you have heard of this, but it's essentially a double or nothing but the amount you win is determined by your chipstack at the end. You get so much money per 100 chips. To me it seems just as doomed as the double or nothing...