Poor
Kath.
May she rest in peace.
I think the Changeling is an advantage to the village in most cases. If she (I use feminine pronouns of all unknowns) chooses a wolf, she can mess the wolves' plans by killing someone they don't plan to kill. If she chooses an ordo, we know for sure that she's on our side.
The only problem about her is that she can mess the gifteds' plans as well as the wolves' plans.
Anyway, if we have stupid gifteds (which I hope we don't) that can be an advantage as well. Besides, even then she's not evil.
Retractable votes create confusion. There are lots of early votes thrown around... I understand people just want to stir the discussion a bit, or have fun, but wouldn't that make a perfect cover for a wolf? Especially when there's plenty of these random votes around...