public function Clear($UserID = '') {
      if (empty($_POST))
         throw PermissionException('Javascript');
      
      $UserID = is_numeric($UserID) ? $UserID : 0;
      $Session = Gdn::Session();
      if ($UserID != $Session->UserID && !$Session->CheckPermission('Garden.Moderation.Manage'))
         throw PermissionException('Garden.Moderation.Manage');

      if ($UserID > 0)
         $this->UserModel->SaveAbout($UserID, '');

      if ($this->DeliveryType() == DELIVERY_TYPE_ALL)
         Redirect('/profile');
      else {
         $this->JsonTarget('#Status', '', 'Remove');
         $this->Render('Blank', 'Utility');
      }
   }