So, gkrieg mentioned yesterday that it was possible that Jimmm asked his buddies to bus him on day one, which hadn't really occurred to me before. It would make a lot of sense with my current reads, since Joseph/Awa/Silver were voting Jimmm by the end of day one - meanwhile, my top town reads (RR + Iguana) were not. If it is the case, then it just doesn't seem likely that Joseph's vote was a prompted bus, just because it came so much earlier. It also seems more likely that Joseph would have said something about his vote at the time if he were scum, rather than lurked the last 24hrs of day one.
I can definitely see Awaclus and Silver as scumbuddies. Silver has been pursuing Awaclus for much of the game, but it's only resulted in tangential arguments like in 1230 onwards. Really, those sort of arguments are ones I often see in distancing, since other people will tend to skim them rather than get involved.
So it comes down to PoE. I don't think it's RR or Iguana, I think it's probably not Joseph, leaving Awaclus and Silver as the likely two scum.
I'm loathe to vote right now, since it's LyLo, but I will be around up until the deadline.