No. What they did is unprofessional, completely irresponsible (they didn't even contact the person they are claiming did something wrong--- so what is the point of the thread?), and possibly illegal.
Unlike many of the people on this forum, we act based on legal advice from seasoned lawyers.
The information disclosed here has been disclosed for some time to the people involved with Bitcoinica, but it seems that none of them has talked to Zhou about this yet, nor started any legal action (at least none that reached any of us).
Ok, so what was the advice ? Publish this kind of sensitive information on a public forum? To achieve what? That's what I thought.