Marysunshine

I'm sorry, but I just don't think that's good enough. If you are boarded for a 6 hour flight, then they allow you to sit on the plane for four hours prior to takeoff, ten hours of being scrunched in a plane is not sufficient to me. I don't think there is any reason to leave passengers for that long. I have seen planes boarded when they were fully aware that a prompt takeoff would never happen.
You have to remember you have handicapped people on a plane, tall people squished into a seat on the plane, you have diabetics, and even perhaps small animals who will be urinating or worse on that plane. There are certainly enough reasons to say that this is not good enough, even withstanding the poor air circulation and possible lack of lavatories.