title: Distribution of access token expiry reasons - favors removal of user as Page admin
body: <p>We're seeing some strange behavior in the reasons why access tokens are expiring for Pages using our app. We're using the offline_access permission, and aren't experiencing any problems in data collection (limits, errors, etc.).  </p>
  
  <p>Several of the users whose Page tokens expired are actual owners of the Page. If a token expires, it's odd that we get a reason for expiry as 'removed from admin role'.  </p>
  
  <p>After speaking with some of the users who appear to have been removed as admins, I found that no one explicitly removed them from the admin role - FB seems to have done so of its own accord.<br>
  Is this a documented behavior?</p>
  
  <p>Some numbers:  </p>
  
  <ul>
  <li>76 : Total access tokens expired (out of several hundred authorized tokens) </li>
  <li>22 (28.9%) : Changed account password <em>(Error validating access token: The session has been invalidated because the user has changed the password.)</em>  </li>
  <li>52 (68.42%) : Removed as admin of Page <em>(The user must be an administrator of the page in order to impersonate it.)</em>  </li>
  <li>2 (2.6%) : Revoked access to the app <em>(Error validating access token: User has not authorized application.)</em>  </li>
  </ul>
  
  <p>The numbers appear to be heavily skewed. Is this kind of distribution common?<br>
  How common is it for users to be removed as admins from Pages?<br>
  Anyone have insight into user behavior - do they remove admin access instead of revoking app access?  </p>
  
  <p>Thanks.</p>