function bp_activity_get_comment_count( $deprecated = null ) {
		global $activities_template;

		// Deprecated notice about $args.
		if ( ! empty( $deprecated ) ) {
			_deprecated_argument( __FUNCTION__, '1.2', sprintf( __( '%1$s no longer accepts arguments. See the inline documentation at %2$s for more details.', 'buddypress' ), __FUNCTION__, __FILE__ ) );
		}

		// Get the count using the purpose-built recursive function.
		$count = ! empty( $activities_template->activity->children )
			? bp_activity_recurse_comment_count( $activities_template->activity )
			: 0;

		/**
		 * Filters the activity comment count.
		 *
		 * @since 1.2.0
		 *
		 * @param int $count The activity comment count.
		 */
		return apply_filters( 'bp_activity_get_comment_count', (int) $count );
	}