In Tickle v Giggle for Girls Pty. Ltd., (Australia Fed. Ct., Aug. 23, 2024), an Australian Federal Court judge upheld the constitutionality of the ban on discrimination on the basis of gender identity in Australia's Sex Discrimination Act. The suit was brought by Roxanne Tickle, a transgender woman, who was denied access to a women's-only online app. The court explained:
The respondents do not accept that a person’s sex can be a matter for self-identification. Correspondingly, they do not accept either the validity or legitimacy of the gender identity discrimination provisions of the SDA....
In about February 2021, Ms Tickle downloaded the Giggle App. The Giggle App had been marketed as being a means for women to communicate with one another in what was described as a digital women-only safe space. Ms Tickle undertook a registration process to gain access to the Giggle App, which including providing information and uploading a self-taken photograph of her face, commonly known as a selfie.
The photograph provided by Ms Tickle to Giggle was assessed by third-party artificial intelligence (AI) software, designed to distinguish between the facial appearance of men and women.... Ms Tickle gained access to the Giggle App.
In the period between February and sometime in September 2021, Ms Tickle had access to the Giggle App’s features and used it to read content posted by other users. In September or early October 2021, Ms Tickle logged on to the Giggle App, but found that she could no longer post content or comment on other users’ posts, or read comments on posts made by other users.... When she attempted to purchase premium features on the Giggle App, she received a “User Blocked” message. Her attempts to contact Giggle via the in-App contact form received no response....
It is most likely that Ms Tickle was denied user access to the Giggle App as a result of a general review process by a natural person of the AI acceptances of registration, rather than by reason of her being singled out....
Law & Religion Australia has an extensive discussion of the decision.