You have had a lot of comments!
I read the article and some of the comments before becoming irritated by the attitudes displayed. It did teach me the meaning of the word cis, which I had wondered about...but not with any strong feelings either way.
It was mainly useful as a way of reminding me that one does not need to ask personal questions, they can (and often are) be offensive.
I have wondered, and this isn't a question, but while we are skirting the transgender subject, how often gender and sexuality follow each other? As I said, my niece has married a woman, and so I assume, although it is dangerous to make assumptions, that she always fancied girls, and her gender wasn't relevant to this, whereas Radclyffe Hall, whose biography I read recently, seemed as though she might well have chosen to be a man had there been the possibility, none-the-less she only fancied women. Her partners were all previously hetero, and the evil Una Troubridge, having abandoned her husband for Radclyffe, then went off with a toyboy (and of course Radclyffe's money) after her death.