Your own comments have an automatic upvote applied to them—this works like any other upvote. If you click “Vote up” after you’ve already voted something up, it cancels the upvote. You can (potentially) determine whether you’ve currently voted a comment up or down based on whether “Vote up” or “Vote down” is in boldface.
Trolls and flamebait get lots of replies too, and that shouldn’t count towards karma.
Your own comments have an automatic upvote applied to them—this works like any other upvote. If you click “Vote up” after you’ve already voted something up, it cancels the upvote. You can (potentially) determine whether you’ve currently voted a comment up or down based on whether “Vote up” or “Vote down” is in boldface.
Trolls and flamebait get lots of replies too, and that shouldn’t count towards karma.