I wonder if they leave the dislike button on comments for psychological reasons. Stackoverflow comments under questions and answers also can only be liked and

I wonder if they leave the dislike button on comments for psychological reasons. Stackoverflow comments under questions and answers also can only be liked and when you want to downvote you feel frustratingly helpless. On Yotube even if you know it doesn't do anything it's slighly less frustrating as you are able to do some sort of thing it's like a personal closure that let you move on.