Rules of downvoting an answer
53621
Why do you cast downvotes on answers?
117287
How should a SO answer be credited when used in an open-source project?
39016
Inform new users if they can upvote an answer they accepted
18896
How does comment voting and flagging work?
158880
Another take on canonical answers: Add a "canonical" vote
95144
separate reputation for questions and answers
85843
Reminding new users of accept/upvote "duty"?
147115
Disallow downvoting other answers if I've posted my own
2171
Should I flag/down-vote "Draft Answers"?
5021
When to comment or answer
105542
Allow flagging a comment after upvoting it
151124
How to act when you're being serial upvoted
134870
Different implementation of downvoting: require comments
157030
Seeking feedback on downvoted question?
119730
Etiquette for selecting answers
36846
Do not implicitly award bounty to an answer that has been downvoted by the investor
58704
How to vote on friends / colleagues ' questions (or answers)