@Aether Not going to claim what I did last Night just yet, because I am waiting on information from someone, but I can just say it if you'd rather me do so.
@Destroya As per last Day Phase, you'll recall that my suggestion was that Night Raid was the final scum member. Obviously, that cannot be the case now, but having re-evaluated it I think it could be Ekkologix. His flavour claim, Eula, being Cult-immune doesn't make a lot of sense, because why out of every player in the game would a minor, fairly irrelevant character be immune to the Cult? Being Mafia automatically makes one immune, though, so I could see him just being scum, which would also resolve the number of Cryo-character claims in the game, as we know Kaeya was Town and I believe Emi is also Town (her character, Diona, is the propriatess of a tavern, so her receiving messages makes some degree of flavour sense in that, as the propriatess of a tavern, she would naturally be in a position to hear rumours (speaking of,
@QueenEmilia do you have any more messages?), which leaves just Conq and Ekko. The issue with this line of thinking from me is there is no guarantee scum is present within the Cryo claims, so it's really only an aside to other, more congruent reasoning to back Ekkologix being scum.
As for whom the first recruit was, I'm not going to pretend like I have an idea. I haven't finished reading Day 1, in fact there is still a lot of it I haven't read, and so I would have to defer to those more in the know than I about whomever is likely. I will say, in my notes I had Juliet down as scum while reading before I subbed in, because my understanding is she has a very low level scum play meta wherein she simply is inactive and non-commital as scum. And if I can discern that from one game of her playing scum, I expect several others can, so I would look Day 2 at any WorstGen-regular who was defending Juliet in any capacity.