= intval( get_option( 'thread_comments_depth' ) ) || ! comments_open() ) { $classes[] = 'no-reply'; } return $classes; } add_filter( 'comment_class', 'baskerville_2_comment_classes' ); /** * Add a pingback url auto-discovery header for singularly identifiable articles. */ function baskerville_2_pingback_header() { if ( is_singular() && pings_open() ) { echo ''; } } add_action( 'wp_head', 'baskerville_2_pingback_header' );