Subscribe downvoters to posts they downvoted
44495
Allow an edit to notify downvoters: "I think I've fixed the issue now - please check"
99709
Reviewing downvotes?
55709
Undo an up/down vote after a comment is left
43983
Is it possible for users to view a post's up and down vote history?
1979
Can I ask other stack overflow members to consider removing their downvote after a post has been deleted?
10343
Make voting activity on your posts available on site metas (what you would get from rep if metas had rep)
38709
How to prevent negative comments/downvoted being deleted by re-posting answers
35761
How to identify a downvoting stalker
23554
Enable the VLQ flag option on upvoted posts for users with good flagging history
34814
Mandatory comment after downvote
22027
What can I do if I'm the victim of serial downvoting?
57880
Add a note about downvoting on Meta
126368
What should you do if you're serial downvoted & it isn't automatically reversed within 24 hours?
138671
Allow users to leave an anonymous comment when voting
70125
Indicate How Trustworthy the UpVotes Are
152097
Why do I not get enough reputation to start with to be able to downvote?
80121
Send request for "reason for down vote"?