That is good! Let me play around with the code for now until the feature comes officially.
Edit: I found I had to remove this code for the reply button at the top to disappear. How will this be dealt with in GP 2.4 so as not to show two instances of “reply”?
<?php
comment_reply_link( array_merge( $args, array(
'add_below' => 'div-comment',
'depth' => $depth,
'max_depth' => $args['max_depth'],
'before' => '<span class="reply">| ',
'after' => '</span>',
) ) );
?>