YJ, because every time a MTF person says "I was born male", the underlying meaning, culturally, is "I'm not a REAL woman, so I need to tell you". This is very hurtful for someone who identifies female. Same thing for FTM people. I won't say what's right or wrong in the situation, I'm not transgendered and I'm biased in my own way, I identify as bisexual so binary gender means very little to me. I just want to remind people of what it means for the transgendered person. It's easy enough only to think of the heterosexual man's needs without spending time thinking about the transgendered person's needs and feelings. That's where it gets really complicated and very difficult to make any ethical point. Clearly the author of the article falls into the feminist category that the group with the most power has the responsibility to cede that power to the "oppressed" group. What I mean with "oppressed" is a group with less power, visibility, perceived normality, social currency, etc. I lean towards this view myself but I won't impose it, because it's very theoretical, and hook-ups are not.