It's plausible that scum waived to incriminate Thoth, though whether they would do that when it gives town a whole extra day phase is something I need to think more on.
They could also have just targeted Magoroth right along with Thoth, though that's questionable given the Restless Spirit role. They'd have to be pretty sure that Mago would vote in a way that helps them to go to that extent.
It's also possible Thoth is scum, has no night vig, and NK'd Mago so he could push through the argument that he did use it but scum is conspiring to foil his role confirmation. I hesitate to believe that, though. Thoth was pretty firm that wylted was town even when the tide of the vote was going against wylted, and he was the second person to vote Kohai, fairly early in the DP.
It would essentially just be a fake claim to cover for an NK. The Even Night aspect gave him a reprieve from proving his role NP1 and will give him another NP3, so we'd only have to buy it for NP2. On townreading Wylted, I get your point, but that's a WIFOM argument. It would not be a first for many of us, myself included, to play as scum by strongly townreading another player who others were sussing. As for VTLing Kohai, it's practically a given at this point that someone bussed him, just a question of when and how much.
Lunatic and whiteflame's roles remain unconfirmed and they are very much in the POE. I am putting banana aside for now. I agree with Lunatic that Chauffeur and Petitioner seem like a weak scum team -- especially considering that would mean town was loaded with an Inventor, day cop, Bodyguard, JOAT, Night Vig, Dead Voter, and Martyr -- unless Banana is a JOAT, and we can still verify that her Petitioner wasn't a 1x.
I think it's fair to have us both in POE for obvious reasons. I'm more skeptical of setting Banana aside. It would not be a first for a mod to give scum a very confirmable role just to ensure they get towncred. It's odd enough that I don't think it's the likeliest explanation, but I can't rule her out yet. She could still have multiple roles we're unaware of.
In Lunatic's case, he may have just been too late to stop the claim, as I've said before; it happened fast after he subbed in. He's marshaled some arguments against this, but they amount to some WIFOM and a few relevant points -- namely that it's a very silly scum claim that he's going to struggle to even confirm. And indeed he watched only himself and roleblocked a dead man. JOAT and Inventor remain an eyebrow-raising combo.
The main argument in Luna's favor for me is that he's claimed Luthen. I can't say the JOAT does much to move the needle and I see your point on that.
In whiteflame's case, maybe I'm approaching this wrong -- maybe he saw Kohai's demise was inevitable and even advised him to claim Strengthener so he could farm some towncred with a quick hammer. I have to imagine scum!whiteflame cringing when he saw Kohai's "haha I'm scum come in wolf chat Mago" jokes, though.
I mean, it's WIFOM all the way down with Kohai. It would be a new low for me as scum to actively tell my partner to flame out like that, but I suppose anything's possible.