The thing is that what works for one person might not work well for another. Your lighting might be different than the orginal creator, you might like Gamma Correction when the creator might not, you might be rendering close up when the bump was set to look good from a mid range, etc. There are all kinds of variables that are present that have to be factored into if it was "tested in Poser or not." It could have been tested. Just not the way all users might be using it.