Half implemented hook_user function?

Currently views scheduler implements hook_user.

function views_scheduler_user($op, &$edit, &$user, $category = NULL) {
  switch ($op) {
  case 'view':
    $items[] = array('title' => t('Subscribed to '),
    'value' => t('none')
    );
      return array('History' => $items);
    
    break;

  case 'categories':
    return array(array('name' =>'schedule_subscription',
			 'title' => 'Subscribe to scheduled view',
			 'weight' => 4));
    break;

  case 'form':
	$form[$category]['affiliate_enabled'] = array
	  ('#type' => 'radios',
	   '#title' => t('Is as Affiliate?'),
	   '#default_value' => 1 ,
	   '#options' => array(t('Disabled'), t('Enabled')));
      return $form;
    break;
  }
}

What is the plan for this function? This seems like a half implemented feature. The problem is this creates a confusing account edit setting for all users in which the views scheduler is installed. We've had to comment out the function.