But I beg to ask... Where do you fall on hate speech? Calls to action in violence? And other forms of discrimination? These are things downvotes are best used to attack on my opinion... But you have no mention of them here....
A code of conduct is definitely needed, I haven't come across one... In it's absence, downvotes will do. Maybe I'm missing something.. but the only "rules" I see, are "have a brain"..