Sorry If this has already been suggested I couldn't find it.
I know you state clearly in the rules consider to post a comment on why you down vote.
Ex: "If you vote something down, please consider adding a comment so that it can be improved!") Straight from the RULES
I rarely see someone post a comment for why users down-vote. How we need to put more information in our box labeled ("More information for your question") without adding words here we can't ask a question I suggest a similar operation for down-voting.
- When you ask a question you HAVE to put a reason why you down voted.
So when we down vote it should say something like ("Reason for Down-Vote").
This would be very helpful in my Opinion,So when we see the comment users can be like Oh I really should fix that.Then maybe an option for after your answer is Corrected the user may remove the vote?If this suggestion is accepted,For the user who would like there vote removed and the other user won't remove it for whatever reason EX: I didn't know He/she edited His/Her question.Mods/Editors can be able to remove it sorta like flags.
Well that is my suggestion.