Cori Glencross was filmed by a friend beating a pensioner to the ground before pleading with judges to keep her identity a secret, fearing her own safety.
The 23-year-old begged with Magistrates to impose an anonymity order on her trial to keep her case out of the public eye.
Glencross lawyer Shelley Buchecker said there were multiple Facebook posts showing her client could be in danger following the savage beating.
Goolang Magistrates Court, in Victoria, Australia, threw out the application under the presumption of open justice.
It was ruled she would have to live with demeaning and humiliating posts on social media after finding no evidence of threat among the messages.
Open justice is based on the fundamental principle that the actions of the courts should be transparent to the public.
Magistrate McGarvie said Glencross had been charged with shop theft and committing indictable offences while on bail between November 2018 and March this year.