People who have "showdead" enabled in their profile can see flagged or dead comments and their replies, and can vote on those replies. As an example, I just up

People who have "showdead" enabled in their profile can see flagged or dead comments and their replies, and can vote on those replies. As an example, I just upvoted your comment that I'm replying to. Turn on "showdead" in your profile and you will see what I'm referring to.