chx

<?php

function node_ban_menu($may_cache) {
  $items = array();
  if ($may_cache) {
    $items[] = array(
      'path' => 'node_ban',
      'callback' => 'node_ban',
      'access' => user_access('administer nodes'),
      'title' => t('Blocks author and deletes node'),
    );
  }
  return $items;
}

function node_ban($nid) {
  if (!is_numeric($nid) || !($node = node_load($nid))) {
    return MENU_NOT_FOUND;
  }
  $account = user_load(array('uid' => $node->uid));
  user_save($account, array('status' => 0));
  node_delete($nid);
  watchdog('node ban', t("The node %title has been deleted and it's author %user has been blocked", array('%title' => $node->title, '%user' => $account->name)));
  return t("The node %title has been deleted and it's author %user has been blocked", array('%title' => $node->title, '%user' => $account->name));
}

function node_ban_link($type, $node = NULL, $teaser = FALSE) {
  if ($type == 'node' && user_access('administer nodes')) {
    return array(
      'href' => 'node_ban/'. $node->nid,
      'title' => t('Block author and delete node'),
    );
  }
}