Angry listeners claim vegan activist Tash Peterson's offensive publicity stunts are just cash-grabbing and questioned who is paying her legal bills.

The infamous vegan activist had her court appeal turned down after an incident last August outside the Louis Vuitton store in Perth was deemed 'offensive' in a Perth court this week.

Peterson told 6PR Mornings host Liam Bartlett the decision will not stop her protesting in a similar manner.

"Everyone's going to be offended by something and that doesn't mean someone should be criminally charged if they've hurt someone's feelings by speaking the truth," she said.