That's pretty standard for criminal rape cases, mind you. There were laws in the US prohibiting revealing the identity of the victim in a rape case, but they g

That's pretty standard for criminal rape cases, mind you. There were laws in the US prohibiting revealing the identity of the victim in a rape case, but they got struck down as unconstitutional -- there's still a strong cultural norm in the media of not announcing it. It's also a good idea. Being raped is bad enough; if the bar for consequences for your rapist becomes "I have to loudly announce my rape to the world", that's even worse. This can be viewed as a web-of-trust situation. The raped person told the leaders of the Tor project, who believed them. You can now either wait for possible criminal charges that might be going on behind the scenes, or you can trust the Tor leaders.