Ivy Astrix has followed up with a blog post.
A male kinkster and coder responded: "This is a tough one, but I'm going to fall on the side of the OP because the event is heavily gendered. Any event that embraces the concept that men are inherently predatory and women are inherently prey teaches the wrong things about roleplay, or human beings."
I hope that anyone who wants to explore rape fantasies finds people who can help them explore safely, and that anyone who gets physically or emotionally hurt at one of these events can find help and support.