Much of the legislation relevant to this sort of thing has not kept pace with the times.
For example, the Children and Young Persons� Act has Section 39 which can be used by courts to prevent the publication of the details of young people involved in court cases (be they defendants or witnesses). However, the law refers specifically to newspapers. The editor of a newspaper can be brought to book if his paper prints any prohibited details.
However, the same law does not cover internet publication such as on this site. If an AB user were to attend a court where a Section 39 order was made, and then mentioned the prohibited details in a post on this site, I believe it would not be possible to successfully prosecute the editor of AB in the same way as a prosecution could be brought against a newspaper editor.
Newspaper editors have specific responsibilities under the law which they, in their professional capacity, are aware of. The same responsibilities do not apply to the public and on sites such as this it is they, not the AB editor, who are "publishing".
Nonetheless, to remain within the spirit of the law, AB has decided that it will not tolerate people publishing sensitive or prohibited details on its site even if, technically, no law has been broken.