We can't change our rating on a thread!!!

Why are we not allowed to change our rating on a thread we’ve already rated? It doesn’t make sense to me. What happens if it’s a bad thread in the beginning but then it turns into something awesome? Surely the bad rating should not stick. Am I missing something?

I don’t think it was ever anticipated that anyone would change their ratings. I’ll look to see if there’s a way to toggle a user’s ability to change how they’ve rated a thread… but I didn’t see it last time I looked.