Good article. The Times are really showing some journalistic integrity in this particular debate.
Re the nipples/androgynous thing there are a small subset of people known as nullo's. It's rather disturbing so I don't advise googling but some go as far as removing genitals and navels too as part of extreme body modification.
I discovered this a few months back via datalounge who had some rather horrifying photos in the discussion. Up until then I had no idea it was actually a thing.