I loved the setup. I think the only problem was that it basically turned into 2 v 4 v 10. SK + Moriarty was a team that had knowledge of the 4 team, and was able to talk to them and see what actions they were taking at night. I think it would've been harder than you think to kick Moriarty out of the scum QT because we had no way of talking about it without him seeing us talk about it.
I also think that having day chat helped them out tremendously. I mean I kinda knew that ss was talking to the SK, and I wanted to kick him out of the QT the night after I died, but obviously didn't have the chance.
I also think what hurt us the most was having two replacements. That makes it hard on any faction to win. I mean you really have to show that you blindly trust someone, which is really tough to do.
So I personally didn't like the Moriarty role, because I think it would've been really hard to get him out of the QT. Maybe it would've been better if we didn't know that it was ss, because then we could've easily built a case on him, not knowing that it was Moriarty. I just don't like being mafia when someone who is not of your faction knows who you are. That just kinda sucks.