message: instanceId doesn't seem to be available here now?
  But owner differentiates vendor items from player items, so we'll just use that.
diff: @@ -6,7 +6,7 @@ function ItemReviewController(dimSettingsService, dimDestinyTrackerService, $sco
  const vm = this;
  vm.canReview = dimSettingsService.allowIdPostToDtr;
  - vm.canCreateReview = (vm.canReview && vm.item.instanceId);
  + vm.canCreateReview = (vm.canReview && vm.item.owner);
  vm.submitted = false;
  vm.hasUserReview = vm.item.userRating;
  vm.expandReview = vm.hasUserReview;
  