Man, so is it too early to complain?
The Rat seriously BREAKS the game in so many ways...
If the rat's goal is to kill everyone, the ideal way to do that is to take control of both mafia's. Well in order to do that the godfathers have to die... Oh wow, he knows who the godfathers are....
Now, he can easily just leak this info... if when they die, he doesn't get appointed new godfather, he leaks it again. Basically, the rat makes it impossible for the mafia's to ever win.
The fact that he is only supposed to leak one every 3 days is irrelevant. He knows who the townies are because he knows who the mafia is. He can just tell whoever the heck he wants.