title: How to prevent a WordPress page from being deleted by a user
body: <p>Some WordPress plugins create a page or a post, and proper function of the plugin relies on the existence of that page or post. For example, a plugin that manages an e-mail list might rely on an unsubscribe page, which a user might delete on purpose or by accident.</p>
  
  <p>How can a plugin prevent its page from being deleted?</p>