It means 'which isn't acceptable'. I am also confused as to why they used this turn of phrase, perhaps to sound more colloquial. It sounds weird to me too, an

It means 'which isn't acceptable'. I am also confused as to why they used this turn of phrase, perhaps to sound more colloquial. It sounds weird to me too, and comical, coming from a govt department, but perhaps it is indicating that the privacy commission finds that to be something the population would not approve of, but which it has no actual enforcement mechanism.