In previous games, Worcej has been acerbic and hostile, even agreeing that he's playing like an asshole. In those games, he's been town. In a recent game when he didn't play that way, he was scum who managed to make it to the win in no small part because of his newfound congeniality. It's just 20 posts so far this game, but he hasn't abused or derided anyone enough for me to think it's town-worcej.
Ghug is on my list because I have a hard time reading him (even having just been scum with him), and something says I want to scumread him; while I don't think Vecna is scum, if I'm wrong about that, ghug and Vecna could be scum together and done a cutesy little dance for us all a few pages back. So Worcej gets an explanation because I can point to a general change in behavior; ghug doesn't get an explanation because it's just a gut reaction.