Personally, I don’t want any negative reactions.
People around here are negative enough, don’t let them publicly dislike something without explanation by just the press of a button.
The random ass 300+ reply arguments that appear would become even more toxic ratio battles. Like if you’re gonna crash out on the internet for the next few hours then at least put in the effort to type instead of using the super alluring hate button.
Also bait would become even more believable because you get notifications for reactions.