In the comments, please give the ability to reply to a reply!
When someone replies to my comment, there is no way to reply to that person.
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Christopher Moss commented
Yes there is. You can simply reply farther down in the replies. To address the comment to a specific user – let's say his username is JoeSchmoe – simply prefix the message with the text "@JoeSchmoe:". I think most users either know what that means or can work it out.