0xFF usually plays well and always writes something more or less meaningful. Maybe he's just busy with work/studies right now.
Heroist is acting a bit strange in this game, isn't he? Is he trying to be a comedian or something?
Alex has the lowest probability of being a Mafia member out of everyone, and even if he is, he can only be a "potato" (a weak Mafia member). There's definitely no point in voting for him today.
Hexane and forgotten ghost are a bit unclear, but since they're new, I can't say anything about them. I suspect that one of them might be a Mafia member, possibly in a pair with Heroist.
Added after 34 seconds
Heroist, so what's clear to you?