Looking through D1 posts again still doesn't help me very much even with the knowledge that Jpappy was mafia. I'll have to go through it all again, I suppose, at some point today to see if there's something I'm missing. So far in this game, the main thing that stands out for me is how little really stands out at all. The thoughts I have still seem thin and I'm not sure they're even worth pursuing, but I'll share what I can just in case it helps get some ideas out here.
First, it was my expectation that the mafia would hit either Ice or Coler the first 2 nightfalls because of their experience/game style. So that presumption lead me to think whichever of the two avoids mafia hits on N1 and N2 would more likely be on the mafia team himself. The mafia isn't going to hit one of their own. Since Coler was hit and revealed as a citizen, it's seems more likely that Ice is mafia. Going back through the posts last night looking for clues along this line, however, I don't actually see anything from his posting that backs up a mafia suspicion.
The other supposition I have is generally anyone who doesn't vote is acting more out of self-preservation than in the best interests of the town. But the same is true for those who don't post (who are actually here) and those who post now and then but who don't actually say anything. As DD didn't vote, I'll watch her more closely now.
Hope I can find more to go on than this fairly soon. This is a real slow thing with so many people either not playing or holding back because they can.