Re: Cult Leader -- We must consider the possibility there was already a Cultist at the beginning, plus the (likely) chance another was recruited last night (as Shinji said).
Ichigo darling, Gin Ichimaru's reasoning was bad, yes, but it was grasping at straws early. There's no real need for anyone to post reasoning for votes that early in the game. Would a scum feel required to post justification? Probably, it helps to avoid being called out if you give a reason. But that was such a ridiculous claim so early on that I'm tempted to think it was just, well, early game nonsense.
I agree with you that Kenpachi deserves a look. He appears to be playing the role of buffoon. The attempted save of Aizen when it was too late may have just been a step towards saying "I tried to save a town person, therefore I am innocent."
Now onto dearest Jin Kariya. Your tie-break was always going to be scrutinized, but I think the act itself was irrelevant. Someone is always going to have to break a tie. However you voted for Aizen because
What did you mean by this? Was there something I missed? The point seemed to be about Soifon, who really had no impact on the lynch.