I think it's a fair ask to have downvoters explain why they have downvoted. Even when we look at Facebook, they also do not have the "dislike" button which many people are asking for. Why? First, nobody likes to receive negativity/reprimands, especially in the public. Second, there are many online trolls who just do negative stuff for the fun of it.
Here on Steem, we have the downvote system and we should take it positively. If you do not like something, at least help the author improve by leaving a note
Thank you @culgin for your opinion, I absolutely agree. Recently I read that in some social media where they have such system people especially young, teenagers, or very sensitive, they get stressed as they can't get what they want and become depressive and that is not healthy for anyone, because having something negative we just feel bad even without any reason. it is widely spread now on Steem that people just downvote and when you look into their blog and will see that they is not posting so that they receive no downvoted but just downvoting others most likely for fun.
That's precisely the case why FB doesn't want to implement a dislike button. If too much negativity exist on a platform, people leave. Most people can't accept it. We live in a world where people just want to see the good stuff