I think that we're all looking too hard into this game and each other's reactions. Yes, reactions can, on occasion, work to help identify a scum. However, this is often a case of confirmation bias more than anything else given how rarely it works and how easy it is for scum to get around by looking towny. Because the Bay12 meta has such specific patterns to it, skilled scum players can just subvert the expectations of scumminess and just fly by under the radar while unlucky townies get the noose. I've seen it happen repeatedly, and is likely the reason why so many games end in a loss for the town: they can't win because they telegraph their lynch criteria to the scumteam well in advance, much as how a towny group plan in this game would give the scum ample time to work out a countermeasure. Logically, then, the only way to beat them is not through relying on the lynch but through judicious use of role powers. The scum are given a stacked deck in mafia games: they can plan in secret, they keep their machinations secret, the town has to hunt for them, and the town has to telegraph any coordinated efforts to them. These advantages are particularly acute in CYOM, since the scumteam can morph itself as needed. This holds true for multiple scumteams as well. So what is the best way to counteract this? We can't discuss a plan in the thread, because the scum will see it. We can't use the chat power to discuss, because we might hit a scum player and have them betray the person they are chatting with. The only way to counter the scumteam's advantages even slightly is to not plan as a group, but then it's every man for himself, which can lead to its own problems. So let's see...
One of the scum's advantages is that they know each other's masks and alignments, so they can work together. The alignments part is impossible to touch, but it IS possible to mess with their masks so that a scumteam focused on supporting each other would become incapable of functioning. Grand Swap would be the easiest way to do this, obviously, because it switches everyone's mask, but it also disadvantages anyone whose build was a self-buffing build (like Peradon's, for instance)...
Idk. I'm trying to come up with some way to break the scumteam(s), but I'm nothing is coming to mind. I'm just sure the town will lose if we keep telegraphing our lynch criteria to the scumteam(s)...