A voting comment increases the vote count for the chosen answer by one.
Upvoting a comment with a selected answer will also increase the vote count towards that answer by one.
So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.
balqis32
10 months, 3 weeks agoKellyOna
2 years, 11 months agoKonradK
3 years ago