Gut feeling: Whiteflame and Pie are Mafia.
Whiteflame – Claiming JOAT Commuter is a very safe move. Commuter is a role that can be nearly confirmed through testing, and adding JOAT gives him flexibility—especially if someone visits him and their action doesn't return a "your action failed" message. It gives him a fallback. Even assuming this is his actual role, claiming JOAT early in a role madness game is risky because it's likely it is in the game. I think this claim makes more sense coming from Mafia, especially since it has manipulative potential. Overall, it feels like he's hedging his bets.
Pie – The way he said he was going to sheep me and then immediately unvoted before launching into an analysis of theme seems dumb—and I don’t usually consider Pie a dumb player. Trying to dig into niche theme splits on Day 1 reads as fluff. It looks like he's trying to get people to lock into soft claims and then use that to steer mislynches later based on weak theme reads.
Banana – Hard to pin down, but he feels like newbie Town. The way he brought up the F16 thing and made his claim seemed innocent and in good faith.
As for the others:
It's tough to get solid reads on Mharm and User—most of their posts aren't really useful as always. When Lunatic shows up, I think we’ll get more meaningful content. Same goes for Wylted.
Not enough info on Moozer yet, but I think he’ll contribute enough to get a read eventually.
If we can’t find a stronger lynch, I’m okay with voting between Mharm and User. Better to eliminate the keyboard droolers