I don't really think -Karma even makes sense, anyone can give you -Karma for any reason, you can argue with a member and they select one of your post and give you -Karma, i think this option should be disabled for members, and only the admins should be able to give -Karma. If a user is shitposting too much, you report them to the moderator and the admin can punish them with -10 Karma.