The women, with the help of elite Bay-Area law firm Keker & Van Nest, filed a lawsuit against the administrator of the site (who later had his law firm job offer revoked) and the anonymous posters. The problem? That the anonymous posters were, well, anonymous. To obtain the identities of the posters, they issued subpoenas to the ISPs seeking the posters' IP addresses.
One of the posters ("John Doe 21") has responded, and argues that his First Amendment right to speak anonymously outweighs the plaintiffs' right to obtain his identity in order to pursue their claims against him. The brief is available here. There is much speculation as to whether the plaintiff is a law student -- the brief is on one hand quite in-depth and earnest, yet also somewhat unsophisticated, contains typos, and generally comes across a amateurish. Take, for example, John Doe 21's sarcastic remark about the timeframe for his reply:
The Subpoena states that John Doe 21 has 10 days in which to prepare a motion to quash... Apparently, 10 days is enough time for John Doe 21 to prepare a motion concerning an area of law with which he has never dealt and concerning a multitude of federal procedural issues that only experienced litigators such as Plaintiffs' attorneys are able to navigate.
I'm still forming my opinion. I think the most difficult thing about the issue is that the Internet is an entirely new ballgame. I wouldn't be too concerned if someone wanted to stand in the middle of the street and broadcast negative information about an individual (even if they did so anonymously). But information disseminated on the Internet stays there pretty much forever and is accessible by absolutely everyone. In any event, I wouldn't feel too bad if "John Doe 21" and his brethren were outted. In fact, perhaps that should be the entire remedy -- out the offenders and have their reputation ruined (I suspect that was largely the goal of the lawsuit in the first place).