Improves UX when replying to threaded comments. use in functions.php

wp-comment-reply.php

<?php
function awesome_comment_reply(){
   if( !is_admin() &amp;&amp; is_singular() &amp;&amp; comments_open() &amp;&amp; get_option('thread_comments') ):
  	wp_enqueue_script( 'comment-reply' );
	endif;	
}
add_action( 'wp_print_scripts', 'awesome_comment_reply' );