Ask HN: Is there any reason to submit negative feedback on a performance review?

For feedback either about myself or my coworkers, I can't imagine a good reason to submit something less than neutral in a performance review. As covered in a previous thread [1], these seem to be entirely a CYA move from the corporation's perspective or for HR to have reason to fire someone. Unless you are trying to get a coworker or yourself fired, what's the point?

[1] https://news.ycombinator.com/item?id=17248630