What's the point of multiple (more than 2) down-votes; it hurts?
14555
Finding a way to discourage users from downvoting questions that have -8 DV's already?
142292
What effect does serial downvoting have on my rep cap?
156609
Reputation needed to upvote / downvote
51806
Make it cost more to downvote without comment; make it hurt to leave a crap comment
86792
Down votes should not have any side effect, on meta
96425
Should you be allowed to downvote the competition?
131405
Why was "downvoting comments" declined? Should this feature be revisited?
132117
Does upvoting a duplicate comment do anything?
99709
Reviewing downvotes?
84130
If downvoting is so important, why does it cost reputation?
66249
Why do downvotes cost reputation for the voter on Meta?
3107
Should 'drive by' downvoting be more effectively caught?
22246
Upvoting a downvoted answer will do +2 upvote?
128814
So annoyed with no-comment, vindictive downvoting
141234
Should we have a down-vote “safe zone” for new users with less than 50 reputation?
51696
Select from list of reasons when performing downvotes
83629
Why do I receive downvotes when I am genuinely trying to learn?