This template tag returns the username of the current commenter in context. If no name exists, then it returns an empty string.

Example:

    <mt:Entries>
        <h1><$mt:EntryTitle$></h1>
        <mt:Comments>
            <a name="comment-<$mt:CommentID$>"></a>
            <p><$mt:CommentBody$></p>
            <cite><a href="/profiles/<$mt:CommenterID$>"><$mt:CommenterUsername$></a></cite>
        </mt:Comments>
    </mt:Entries>