Last night probably(my time). Them going through their Night actions(Alianna I mean) and her showing that she has been questioning Flippy on their actions and read of me.
This coupled with how Theta has been so dismissive of Flippy as possible scum based off one modifier that scum could have, all while doing whatever they can to call into question my role. That is what the traitor would do, make sure group scum stays alive.
Alianna still can be group scum, but all things considered I feel much more strongly that all signs point to Flippy.
And from my perspective, I know I am not scum not the traitor, and I don't see Alianna going out of their way to keep Flippy alive, and obviously quite the opposite since she is voting Flippy.
And yes, I find it more than likely that Flippy is actually a tracker, just for scum.