Okay, so you guys have already covered a lot of this, but it helps cement my suspicions to list it all out. Feel free to quote and add anything I'm forgetting! Welcome to my novel.
I've separated the list into two eras: Pre-Lynch, and Post-Lynch. Quite a few of us had doubts about her before we voted to lynch her, and I thought at that point that it was a good guess, but not a lock. After her evasion at lynch, though, things really crystallized, and I'd stake a LOT on her being a baddie.
PRE-LYNCH:
It was mostly just uncertainty and suspicion before the lynch vote...she'd campaigned against Lady at a few points in the thread, using what seemed to be an incredibly ill-conceived argument. She's also been happy to jump on board and vote for Chordata. She gave me some feels, but it wasn't set in stone.
POST LYNCH:
She evaded questions until minutes before the lynch vote. Then, all of a sudden, she pops up to claim to be a seer. The single most convenient villager role to hide behind.
So okay, what if she WAS a villager though, and it was just bad luck we were trying to lynch her? Easy. We gave her an out. I directly asked her to reveal her character information to confirm what she had said. She refused.
It makes no rational sense at all to be willing to disclose that you're a seer, but unwilling to post your character name and copy/paste at least a portion of your role description. If she HAD been a villager, she could have done it in minutes. I proved that myself. Takes no time at all. SOV/Lupin's writing is distinctive enough, so we would have been very likely to believe her. After revealing the meat of it, why hold this back? A villager would have no reason to.
A wolf, on the other hand, wouldn't be able to fake a name and description in the 12 or so minutes before the lynch deadline without serious skills and forethought.
Then, when she finally reveals, she tells us she's Grimm. Grimm? Really? An adult in a game we are told is about a group of children who are being hunted down by bad guys. An adult who is known specifically for crafting stories in which innocent children face torture and cruelty and depravity? Homie is no friend to the young ones. This is the PERFECT character for a head wolf, in my opinion. As others have mentioned, it could also fit as Chaos...maybe Grimm takes a more unbiased role, but he certainly revels in bedlam and upheaval.
We then find out that there's another villager seer out there. I am much more inclined to believe that there is only one villager seer and one wolf seer than that there are two villager seers. These games are designed to be balanced. There's a thread devoted to future WW games/game in development in which SDN'ers volunteer to test the games for balance before they are played. The mods want to see a true free for all. They're not going to stack the deck one way or another, and giving the villagers two seers would do just that.
To make matters worse, Caiter is decidedly inconsistent in the stories she tells us and the points she makes. You saw earlier this morning....she claimed to have never said I was a villager, until I quoted the post that proved otherwise.
She also tells us that she has received a "special protection box" to use tonight, so neener neener "wolves", she'll be around tomorrow! Nice excuse for why she isn't dying over night, if it actually fit into a rational model of villager behavior. A real villager would want to keep this a secret. A real villager would realize that it would be GOOD if a wolf came after her and she was protected, because it would spare someone else. I also don't believe that anyone was likely to have sent Caiter a protective item last night, unless it was a random number generator, since other targets (like Hazel and Devastating) were much more important for us to try to keep around.
Also, I'd like to note that Caiter is now voting to lynch me, even though she's said before she knows I'm a villager. She claims to think I'm Chaos (convenient, if inconsistent), but even in that case, you'd think a villager would care more about lynching an actual wolf. This reminds me of her excuse for wanting to lynch LadyOTheFarm...she claimed to think Huck was a wolfy role. What? Huck is easily recognized as a relatively harmless child and a decidedly good kid. Makes no sense. It DOES make sense for a wolf to pull out weird, tenuous, inconsistent reasons for wanting to lynch people who later turn out to be villagers, though.
Okay, so I'm sure there's more out there that I'm leaving out, but I think you can see why I think there is absolutely enough evidence to lynch Caiter today.