Well no neither can I Reading through the discussion at Talk Australia it seems most are arguing for it s exclusion because the infobox is only to deal with the most basic information showing only the national flag the national anthem the national arms etc God Save the Queen may not be the national anthem but it seems to me that it was decreed to be an anthem that applies nationally it is the Royal Anthem all across Australia and always so not just when a member of the Royal Famliy is present Additionally as for precedent not all articles on countries that are monarchies list a royal anthem whether this is because there actually isn t one I don t know Of the Commonwealth Realms currently Australia Barbados and Saint Vincent and the Grenadines do not list a royal anthem in the infobox Non Commonwealth Realm monarchies that do have a royal anthem in the infobox include Sweden Norway and perhaps Spain the national anthem is Marcha Real or Royal March Perhaps this is something that should be brought up as a Wiki wide policy In fact a look at Wikipedia WikiProject Countries shows no provision even for the national anthem to be included in the infobox Maybe your concerns should be raised there I would follow along of course