Well, as a safety concern, the railings are an accident waiting to happen. Until you're actually standing next to it, you don't really get a sense of how insecure they make you feel. If you are "down below," they're great. But if you're on the upper level, you notice that they catch you right at about knee level. They feel more like tripping devices than safety features. UFP OSHA would have a field day.
I've often thought as much. It looks like if the ship rocked in battle, you could break both knees on your way to doing a face-plant in the well. Ouch.