Something else I wanted to bring up after reading the discord...
Scum were not given any safe claims. It was the very first thing I asked for in the chat, but we didn't get any kind of response until over a day later. (MBA must have asked rei through some other method because he later said rei told us we could use Near and Mello.) If town had decided to go for a mass flavor solve day 1 we probably would have been outed immediately. I agree with Francis's discord comment that there should be a rule that flavor games either must provided safe claims for scum or exclude flavor claiming altogether, though I have a strong preference for the latter as I'm about to explain.
Even if we had gotten fake claims to start with, Diana got a free pass to never getting lynched once she claimed L (watcher honestly matters less as it's easier to fake in a closed setup) and nobody CCed. It's like someone claiming Naruto in a Naruto themed mafia game; even if they claimed VT they're still not getting lynched because nobody makes the protagonist a safeclaim. Certain flavor claims by themselves are just too strong and essentially act as an inno child, and scum are never given anything to balance around this. Flavor claiming should just be banned outright.
Even what people are given as "safe claims" usually come with their own set of problems, which is a major reason I chose not to go with the Mello claim. For one thing it was stated in the signups the game would have spoilers up until episode 26, but checking the wiki episode 26 is where Near and Mello make their first appearance which already makes their believability questionable at best. And from what I could gather reading the wiki their characters are so closely tied that it wouldn't make sense to have one in the game without the other, so if one of us claimed and flipped the safe claim the other used is immediately called into scrutiny. Also Mello just seemed like an evil character to the point where I'd question he'd be town even as a standalone claim, but of course I haven't watched the show so it's possible I'm misinterpreting things.
TLDR; Having flavor in games is cool and makes things interesting, but being able to claim flavor shouldn't be allowed because it tips the balance to favor town and hurts scum.