In theory, I believe you have to join the forum and have several posts before you can view the photos.
In practice, some members leave computers up and running while logged in so anyone could walk by and see photos, and some members share their passwords with others (against the rules, but unenforcable).
I haven't posted any photos of myself dressed, but if I did, I would hope my presentation makes me unrecognizable as my male self.
Of course if you're going to post photos, don't have something in the background that will lead people to you (like your 1955 red Corvette).