Most of Skold's questionable actions seem more like poor play than scummy play, as I've said in earlier posts. Working on this assumption, I think if Skold was scum it would be more obvious. Even if he arrives at odd conclusions, Skold's motivations seem to be much more based on the intent to scumhunt than the intent to misdirect.
As for scumreads, my vote is currently on Vampirate so I obviously find him (or rather his slot) scummy.
I also don't like the way that House seems to be trying to take control of the game, but I get the impression he does that in every game anyway. Still, I don't like the way he just dismissed the Vampriate wagon without really giving a reason other than "I think he's town so he's town".
I don't like the way Kitz is playing but again I get the impression she does that in every game. Day 1 may be not that useful in and of itself, but not contributing to it makes it impossible, later in the game, to read past actions based on new information. I'll be watching her because even if it is her general meta, it is a good way to conceal information.
I'm still relatively null on Klingon and Errant but I think there's a chance one or both of them are scum as well.