First of all, it's not so unusual for an Aussie to be concerned with such matters, since Australia is part of the Commonwealth and therefore under the dominion of the Queen, who would be conferring the honor upon Osbourne should the petition reach receptive royal ears.

Secondly, Ozzy is set to visit the antipodes in June when Black Sabbath plays their first shows on Australian soil since the 1970s. So maybe the founder of the petition, Helen Maidotis, is hoping for an audience with the prospective Sir Osbourne to discuss the campaign.