So I've been thinking of a setup that involves everyone being able to talk outside of the thread, but not as exploitable as WWG can be (everyone PMing their role to a "confirmed" town, etc.), and I thought of this:
Neighbourhood Mafia
Players sign up in pairs. Each pair will be Neighbours, i.e., they may communicate freely outside the thread but will not be told the other's role nor alignment.
Once a player dies, they'll become neighbours with the next player whose neighbour dies. (Not sure about this part yet, but I'm just throwing it out there).
Thoughts?