I think by that stage far too many are dead. I appreciate the game only started yesterday, but these games seem to have a life of three days maximum. When you compare having three phases in this as relative to Werewolf, it'd be like finishing the game after two night phases and one lynch.
Having a change of targets every twelve hours could work well, and even better you could cap people's posts per phase to 15 for instance. Would reduce spam and make it far more tactical about when you post.
EDIT: I should be clear, either/or with the above, if you cap posts at 15-20 then the game would last longer and you could have each phase last longer.