Sudden downvotes by some psycho spree. How to track/find that user?
35761
How to identify a downvoting stalker
16370
How could a user with 1 reputation point leave a comment?
38686
Zombie comments (aka wrong comments count when destroying a spammer who posted comments)
58992
Can we report / do anything about a persistent troll?
66249
Why do downvotes cost reputation for the voter on Meta?
3107
Should 'drive by' downvoting be more effectively caught?
143279
Canned reasons for up/down vote (w/ example of how it would work)
89507
How do I "Show total up and down vote counts" since I'm at 1K rep?
126368
What should you do if you're serial downvoted & it isn't automatically reversed within 24 hours?
72930
Removed post gives me -2 reputation. What happened?
18273
Identify question upon reputation loss from removed user
33699
Upvoting based on celebrity, too many upvotes ("excessive rep slurping")
145834
Can you appeal against a downvote on Stack Exchange sites?
76457
Is down voting supposed to be anonymous?
18381
The vote fraud script breaks legitimate polling questions - A serial downvoter's lament
43937
Reputation change from unrelated post
22027
What can I do if I'm the victim of serial downvoting?