I think the reason most of us immediate approach this from an angle of, 'ways people would abuse a yes-first' game is due to our experiences. For just about anyone that's staffed, we immediately think of disruptive players that are unable to be reasonable and more importantly are unwilling to recognize that they aren't reasonable, and those players would be the ones most attracted to something advertised as a 'yes-first' game.
The most problematic players that want to assign blame for their own faults to others are probably the most likely to go, 'Finally a game without ridiculous staff where I can do what I want, about time' and gravitate towards it, so unfortunately the game type most dependent on players to create their own constructive environment are likely the ones to be the most toxic.