Why can questions and answers be up/down voted On Stack Exchange, but comments only up voted?
119103
Allow downvoting comments
134870
Different implementation of downvoting: require comments
104814
'Daily vote limit reached' only for comments
58272
I cannot respond to comments on my own question (no "add a comment" link anywhere)
23185
How can I contribute to Stack Overflow just by voting and never answering/posting questions?
50625
Can't flag an up voted comment
128269
Comments asking for upvotes/accepts
104116
How can I know if my post(comment, answer, question) was Flagged?
62956
"Comments only" lock notice on closed questions mistakenly says that question is still accepting answers
88797
I can't upvote comments to nominations in the Ask Ubuntu Election!
17111
Why does the Community user have votes cast?
144419
Is it possible to get an Edit Notification on questions or answers that I up voted?
21828
What are the most upvoted/downvoted questions and answers on the sites?
66719
Can we allow moderators to upgrade a comment to an answer?
128814
So annoyed with no-comment, vindictive downvoting
94123
Why are comments now disabled on the review queue?
91673
Why are there some type of questions that are open and highly upvoted, while others of that same type are closed? Can someone explain?