Creepy user digs my old questions and downvotes them once a day
50843
Dealing with abusive user?
106200
Is there something we can do against "Ask this on xyz.SE" comments?
126368
What should you do if you're serial downvoted & it isn't automatically reversed within 24 hours?
38709
How to prevent negative comments/downvoted being deleted by re-posting answers
114158
Anonymity of downvotes has a loophole
80472
What if six users conspire to nuke posts with spam flags?
133307
What to do when a user radically changes their own question?
31857
Where did this user's rep go?
151124
How to act when you're being serial upvoted
127414
How was this new user able to post two questions less than 40 minutes apart?
9271
Warning to users who are about to delete their own question and cause question ban
30567
Is it appropriate to down-vote posts containing SQL injection vulnerabilities?
155573
Who feels that down-voting is used destructively on Stack Overflow?
21415
How can I remove a (down)vote that I accidentaly made
20391
What happened to this user's rep, badges, and name?
24345
Please stop asking me a captcha with over 500 reputation. I am human
157030
Seeking feedback on downvoted question?