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Perhaps this is a feature that should be added considering the size of some accounts (and when price increases again).

It is something little that hurts no one and acts more like a "dislike"
Maybe it wouldn't offend so many people if they saw people disliked their post in place of seeing it and losing money too.

Yeah. Also it serves as a stern reminder from the larger accounts without doing 'actual' damage.

This is true, a 0% flag would act more like a private comment. Someone else might not have the same issue you do until they read the public comment. People seem to follow the herd more than think for themselves.