What makes hyperbole so terrible? You recognized it was hyperbole, so you must also recognize the point he was making. It's funny to me that the GP is basically saying this change is unfavorable and will greatly diminish the value of HN to a great number of users, and your first "use" of this system is to say you would stifle that comment because it wouldn't affect you negatively. It's almost too perfect.
That's just a different point of view. Although it doesn't add a lot of context to his opinion.
That's the problem with moderation. People will tend to endorse what supports their beliefs. You can endorse a post you don't agree with.