As CanadianBovine said...
it's extremely simple for scum OR SK to fakeclaim VT, and taking claims out of hand is just stupid. Let's look at a highly possible scenario here:
pome is scum and fakeclaims VT to get town into the false dichotomy of chibo or cb (let's assume both are town for simplicity). Town lynches one or the other, they flip their claimed role. Assume SK and one scum die in the night for simplicity The next day, scum wins.
Pome is SK fakeclaiming cuz pome is just an idiot? In this situation, fakeclaiming VT as SK would have little value, imo... so I doubt pome is SK (little WIFOMish, but eh...)
Pome is scum with chibo/cb. Pome fakeclaim VT and pushes for CB lynch over chibo. (assuming CB is scum...) She would thus be bussing her partner to get town points, thus avoiding the SK kill... scum win in this situation too. Pome fakeclaims to protect chibo and lead the torch on the CB lynch, town loses.
In this situation, the chances for town are around 0% survival...
Our biggest (read:
only
) chance is if we lynch scum today, the scum and SK cross kill, and it comes down to 3p lylo.
In essence, town has an almost guaranteed loss. This is really a battle of the SK against the scum more than the town against both.
I find the possibility of a pome/chibo scum partner thing to be slightly higher due to the fact chibo took pome's claim out of hand, no speculation, no suspicion... anything really. Pome is also saying she prefers a chibo (claimed vig, easily scum) lynch over a cb lynch (claimed tracker, also easily scum but harder to tell) when she was on for the chibo lynch just as much as the rest of us... the change of heart feels feigned.