function softGuestDelete($u){
	global $mysqli, $boom_config, $data;
	$id = $u['user_id'];
	if(!isGuest($u['user_rank'])){
		return false;
	}
	$new_pass = randomPass();
	$new_name = '@' . $u['user_name'] . '-' . $id;
	$mysqli->query("DELETE FROM boom_room_action WHERE action_user = '$id'");
	$mysqli->query("DELETE FROM boom_private WHERE target = '$id' OR hunter = '$id'");
	$mysqli->query("DELETE FROM boom_room_staff WHERE room_staff = '$id'");
	$mysqli->query("DELETE FROM boom_friends WHERE hunter = '$id' OR target = '$id'");
	$mysqli->query("DELETE FROM boom_notification WHERE notifier = '$id' OR notified = '$id'");
	$mysqli->query("UPDATE boom_users SET user_name = '$new_name', user_password = '$new_pass' WHERE user_id = '$id'");
}