[serenade_beta]

Originally Posted by DezoPenguin

Spoiler for Mei speculation:

Truthfully...yeah. I honestly don't think Mei cares all that much about her classmates outside of Sakakibara. Even when she's no longer being ignored, she's distant and removed from them, and her "natural" personality (no doubt affected strongly by her family upbringing, but even so...) is very distant and unconnected with most people. Moreover, her sister died even before the calamity started, which is a major gut-punch, and since she was the ignored one she might well have been feeling some guilt over that if she screwed up somehow, and mostly, until they listened to the tape on the class trip, nobody knew that identifying the Another was in any way relevant to solving the problem (it was mentioned that merely ostracizing the another would do nothing?). And she was about to tell at the end of Ep. 10, but got cut off by Teshy busting into the room, and then all hell broke loose, and over and above that she didn't want Sakakibara to know it was someone he cared for and was going to go solve it herself (that's why she ran off on her own the first time, only to be hunted down by Izumi).

Plus, given that Sugiura and Izumi were trying to kill her (hell, Sugiura specifically tried to rally the entire class into a mob to kill her...and most of the class went along with it!) based on the fact that she was the creepy outsider girl (and that Sugiura had once gotten a glimpse of her twin), I wouldn't have been all that motivated to lift a finger to save their witch-hunting asses in the first place.

(Truthfully, a good half of this series seems to be playing as a scathing indictment of the follow-the-leader, fit-in-your-neat-little-role behavior common to school in general and Japanese school life in specific.)

Spoiler for why spoiler tag?:

Yeah, I don't think she cared that much, but that is why I'm judging her for it. Because if she did care, then well, her (lack of) actions wouldn't have made sense.

And telling at the end of episode 10 was a bit too late. The moment you learned what you needed to do, you should have acted, fast. Would have saved the important characters (mainly Akazawa-san and Sugiura-san) and she herself as well as the protagonist would have suffered through less pain.
And it can be said that the witchhunt occurred in the first place because she didn't stop everything from reaching that point. From a God perspective, the fact she could have saved a whole bunch of lives but didn't even try deserves getting hunted down.