That is terrible. Some of the posters on that site were limiting themselves too 300-500 cals a DAY with the intention of burning most of it off!
I really hop DD never goes through anything like this. Some of them were saying they wanted to die. I can understand how people with eating disorders might want to share experiences and talk about their feelings, but they were giving eachother fasting tips.
I feel really sorry for them and actually quite worried