People.
Let us pursue theories that are the most straightforward with the least amount of qualifications before we start pursuing ridiculously complex theories with multiple unlikely conditions.
For example, here are some straightforward theories:
Toaster could have been lying about his role because it would be easy to fake claim.
Leafsnail could be lying about being a Survivor, as he is two for three for the Exterminator already, and the staggered nature of his claim is suspicious.
Here are some theories that are not straightforward.
JTF and Dariush could be the Exterminator team because they could have picked a Holoform Modulator along with several Assassin Bots as well as Combat Camouflage, which they only used to mask one kill, fake claimed Scanner usage on Day 3, and somehow managed to time their Holoform Modulator perfectly with Toaster's Detective inspect.
Jim Groovester is the final remaining doppelganger because the amount of WIFOM gained from bussing Ottofar, and subsequently losing webadict, and then claiming Kook, was well worth the trade in teammates and loss of a kill.
Don't get carried away with the tech and claim game. That's not to say don't consider it, but if you have to start picking the whole Exterminator tech choices to say that somebody could be scum you're probably going too far.
Keep it simple.
Night actions:
(Note: these are just what I would do, feel free to ignore me.)
If Argembarger is town:
- Zathras should block Leafsnail (see below) or one of the people that shouldn't have an action. Might block kill, at least will confirm Zathras again (not that that's necessary).
- Toaster should inspect Jim Groovester. The Kook bit will have no effect. If he's a Dopp Townie, then he would have done the night kill rather than Webadict.
- KaminaSquirtle should guard Toaster or Zathras (without telling us which), they're the most likely to find the dopp.
If Argembarger is the Dopp:
- Zathras should block Leafsnail. The flavor should tell us if he has a Mind Shield or Advanced Mind Shield.
- Toaster should inspect Dariush (to remove the possibility of a Holoform) or Leafsnail (and again the next night to counter a Holoform).
- KaminaSquirtle still on Toaster or Zathras.
Isn't Zathras blocking Leafsnail completely pointless? I don't see why Leafsnail would claim Mind Shield when he had an Advanced Mind Shield, especially if he was the Exterminator. The WIFOM of getting a false positive would be too valuable. I think at best Zathras would just be confirming that Leafsnail has a Mind Shield if he did that, and we don't learn anything new for tomorrow.
I think Zathras' block should go elsewhere, but it's obviously not up to me.
Leafsnail, why did you claim Survivor in the middle of the night in a PM to everybody? And why did you neglect to mention that you had a Mind Shield until today?
Simple answer? I didn't want to be lynched or NK'd. Since I'm, y'know, a survivor. The later in the game it is, the less sense it makes for anyone on any side to kill me.
Why did you wait to claim Mind Shield until the start of the day?
And that doesn't really answer my question. Why during the night? What did you gain from not doing it during Day 3, or at the start of Day 4?