I love this game, however I feel that often-time unless you're playing in a chatroom/VoIP with your friends, a lot of information is missed after a game has been completed.
I suggest the following 2 implementations:
First suggestion: Summary screens; this tracks what each person did in a brief summary every night in terms of what abilities they used on who, who failed at what point, who saved someone etc etc. It doesn't have to be too detailed, but a nice summary allows for an afterthought of "Oh wow, the bus driver did such a good job" or "Wow, pro doctor saves" etc etc.
Second suggestion: Dead chatlog activated on completion/death. I think that once you die or finish the game, everything that has been said in the chatlog for dead people should be revealed. I've played amazing games as a godfather tricking people and getting them lynched/killed without raising suspicion but I will never know what they say about me/the game after I'm killed or I win.