I can't say that I noticed any difference since hrt when it comes to being able to smell men, but then again I was able to smell men as long as I can remember. Is it possible that someone (mtf) who has always been into guys was always able to smell guys and because of that doesn't notice a difference when starting hrt?
I do notice sometimes that my own smell seems slightly different now and I seem to become aware more of other women's smell (please don't tell me I will be a lesbian lol)