I don’t think a one dimensional vote is necessarily just a compression of the comment, because weighing all the points made in the comment against each other is an extra step that the commenter might not have done in the text.
E.g the comment might list two ways the post is good and two ways it’s bad but not say or even imply whether or not the bad outweighs the good. The commenter might not even have decided. The number forces them to decide and say.
I don’t think a one dimensional vote is necessarily just a compression of the comment, because weighing all the points made in the comment against each other is an extra step that the commenter might not have done in the text.
E.g the comment might list two ways the post is good and two ways it’s bad but not say or even imply whether or not the bad outweighs the good. The commenter might not even have decided. The number forces them to decide and say.