This is a great system. It keeps HN clean from flamebates an other spam.
Today my comment was downvoted. That's ok. I won't complain about that. Only this time I was very curious about the reason.
I like to be curious because I like to learn. And one of the best way's to learn is by your mistakes.
So wouldn't it be great when a downvoter must apply a simple explanation? Or could this lead to discussions about the explanation instead of the subject?
edit Changes 'posts' to 'comments'