The post was clear that they did not do this to prove the security flaws. They did it because they believe this information should be made public for the good of the public.

Nearly everyone in this forum opposes SOPA's attempt to shut down websites without a trial. Effectively subpoenaing private communication between suspected criminals without a court order and making those emails public requires much the same infringement of basic rights.

So you have to ask yourself, "Do I approve of private citizens and organizations taking actions such as these if they believe they're helping fight crime?" And then ask yourself whether you're talking about the release of these emails, or SOPA.