One of CASA's problems is that they don't seem to have people who really understand what it is they are writing about. Sometimes it appears stuff is just written by someone straight off the street (low experience pilots included).
In their online "Out-n-Back" series, the section about checking NOTAMs has this gem:
Don't get bogged down in reading NOTAMs starting with or including 'DAH' ... it refers to the Designated Airspace Handbook that applies only to military personnel.