Limiting downvotes to those with an accompanying comment
8960
Encouraging people to explain downvotes
145834
Can you appeal against a downvote on Stack Exchange sites?
52100
Allow new users to flag comments on their own posts
110606
Can we get a comments only lock?
38709
How to prevent negative comments/downvoted being deleted by re-posting answers
135838
Meta Stack Exchange should not penalize downvotes
18896
How does comment voting and flagging work?
22027
What can I do if I'm the victim of serial downvoting?
128269
Comments asking for upvotes/accepts
76457
Is down voting supposed to be anonymous?
134870
Different implementation of downvoting: require comments
143279
Canned reasons for up/down vote (w/ example of how it would work)
22246
Upvoting a downvoted answer will do +2 upvote?
148279
Have downvotes cost more, to be refunded when a comment on that question/answer gets an upvote
126368
What should you do if you're serial downvoted & it isn't automatically reversed within 24 hours?
100443
Notification for comment upvotes
70385
Prevent the OP commenting on their own post?