I've been running around for a year and a half with an ID with an M on it and not once has anyone said a single thing. Bouncers are mostly focused on the birthday, they don't even care about the name much less the gender marker. Once, before my picture and name were changed on my ID, a bouncer looked at my ID, first at the birthday, then saw the male picture, looked up at me, back at the picture, and with a smile said very complimentary,"Nice!" He handed my ID back and let me on it.