In April 2018, Deveny was criticized after making comments on Twitter in regard to Anzac Day and the armed forces, having made similar Anzac Day posts in previous years. Deveny posted a number of messages on Twitter and Facebook, criticising the day as an institution as well as those who follow the event. She referred to the event as "Bogan Halloween", and described it as "a Trojan horse for racism, sexism, toxic masculinity, violence, homophobia and discrimination". Deveny received online threats of rape and violence as a result of her comments. The Australian Defence Force Association, the Union for the Defence Force in Australia, said that she was being deliberately provocative. Deveny referred to veterans as "ignorant and uneducated", and argued that the Australian Defence Forces should not use the term "to serve", and that it was no more dangerous than many other professions, including emergency services officers, farmers, arborists and mental health workers. This comparison was criticised in the media, it was argued that the defence forces are a more dangerous profession than the examples she had given.