First, it is important to remember we are dealing with interactions on social media here, a medium that is to "calm" and "thoughtfulness" what the Da… - Hadley Freeman

Arguments about gender are now so vicious that most high-profile people would rather eat their hair than speak out. But sport, it turns out, is a more clear-cut issue to some than, say, prisons – where various groups have argued over whether trans women should be housed with female inmates.
The current ideology is that gender identity is at least as important, if not more so, than biological sex. That is why an LGBT sports group like Athlete Ally can dismiss Navratilova's arguments about male skeletal advantages with a simple "trans women are women". The International Olympic Committee allows trans women to compete if they have been reducing their testosterone for 12 months; but, increasingly, female athletes are saying that testosterone is not the only advantage. Boys start growing bigger bones, muscles and greater heart capacity from puberty, and no gender switch will undo that. One can firmly defend a person's right to live in the gender identity of their choosing yet also look at photos of trans women athletes such as Gabrielle Ludwig, Natalie van Gogh and [Rachel] McKinnon standing alongside their strikingly smaller female team-mates, and think Navratilova’s arguments are worth investigating instead of dismissing with cries of bigotry.

Nobody ever asks me what it felt like. They never ask what it was like to spend three of my teenage years in secure psychiatric units for severe anorexia nervosa; how it felt to be so undernourished I could hardly walk; how it feels now to be able to picture the doctors' and nurses' faces more clearly than I can those of my late grandparents; how it feels to have spent my formative years with young women who are now, in so many cases, dead; how this experience changed my personality for ever. No, no one asks that. Instead they ask why: "Why were you anorexic? Why?"

An eating disorder is a mental illness. It is characterised by the sufferer's belief that they are too fat, that to survive on 500 calories a day is the norm, that doctors are trying to make them fat, that weighing more than seven stone is obese and unacceptable. So far, so paranoid.
Yet the current culture of skinniness legitimises the anorexic's beliefs. That is where the danger lies. Once a person becomes severely anorexic, they are usually too locked into their own little world to care if Jennifer Aniston is now a size six, or to read about Jodie Kidd's protruding hip bones. But when they try to recover, it is very difficult to shake off these old beliefs when every other magazine cover seems to validate them.