Yeah Roberta, I had a few questions about the set-up of the show myself.
Those are real people, with real lives. It does seem a bit harsh to be voting people off (hence, taking them out of the support system and structured environment that was helping them).
It also disturbed me that the emphasis was on how much weight they had lost. In real life; that doesn't seem like the best approach. It seemed like a lot of pressure on the wrong things.
There was a guy on the season that I watched: Mo. He was seriously obese. I loved watching him and cheering him on. He seemed like such a nice guy.
On the positive side: it was inspiring watching folks reaching personal goals that they had long ago given up were possible. That I enjoyed. Seeing Mo run his first lap around the track without having to stop was really cool.