bbp_force_comment_status( bool $open, int $post_id )

function bbp_force_comment_status( $open, $post_id = 0 ) {

	// Get the post type of the post ID
	$post_type = get_post_type( $post_id );

	// Default return value is what is passed in $open
	$retval = $open;

	// Only force for Forums post types
	switch ( $post_type ) {
		case bbp_get_forum_post_type() :
		case bbp_get_topic_post_type() :
		case bbp_get_reply_post_type() :
			$retval = false;
			break;
	}

	// Allow override of the override
	return apply_filters( 'bbp_force_comment_status', $retval, $open, $post_id, $post_type );
}