Thanks to Jamie D I'm going to give this another try.
With respect to postop's the primary issue isn't "passing," but their perceptions to self. Essentially, more often than not, If you're comfortable in your own skin, others will be as well. It's all about attitude.
Ten years ago I spent an hour with Dr. Eric Vilain, M.D., PhD, one the world's top geneticists who told me gender dysmorphia was a genetic based disorder, not unlike like heart disease. Therefore, as I'm treated for my genetic disorder with HRT, to be followed by SRS, I don't believe I'm obligated to tell casual partners about my medical history? My medical treatment history is a private matter between me and my doctor. However, should the relationship become serious, and by that I mean a live-in love relationship, or marriage, I would have the talk. Not because of some misplaced form of ethics, but in case of illness or injury.
To often in these pages I read between the lines and hear fear, pain, and in some cases, self-loathing. For me those days are my permanent past and I will no go back to that life. I didn't initiate aggressive HRT to hide. I did it to fix a genetic disorder of the brain and expect to make a full recovery...A pair of Jimmy Choo's would be nice. too!