It actually already is a feature. Kbin puts it upfront, and I think lemmy also has a way to access it.
I think it remains to be seen whether or not it’s a good idea.
I’ve seen some people say they like the idea because it make people think twice about downvoting - it cuts back on the instinctive “I don’t like this so I am gonna downvote.”
But, as you said, do we really want people coming after you because you downvoted them? There are crazy ass people out there, and if you ever get doxxed it could be a problem.
Maybe that last point is hyperbole, but crazy people are gonna do crazy things.
Right.
My intuition says this has to do with kbin wanting to interface with mastodon, but I cant be sure.
I do wonder how this will impact the Fediverse as it grows. I would not be surprised if the feature creates schisms in the future.