Elsewhere, Idiot/Savant discusses the Atheist Bus campaign and gives some good reasons why it shouldn't happen here. I can give one good reasons why it won't happen here: Bill Cooke will not allow it.
The idea of such a campaign will be raised at the next meeting of the Council of the New Zealand Association of Rationalists and Humanists (Inc), probably by an idealistic and naive member who is new to the Council and innocent of its machinations. Dr Cooke, the esteemed former Visiting Assistant Professor of Car Parking at the University of Brigadoon, will listen to the member's idea carefully, all the time glaring at the member. He will then sigh deeply, raise his eyes to the heavens and lurch into a tirade about the negativity of such a campaign. Dr Cooke, is of course an Humanist, which means he has a World View. Humanism, you will see, is better than Atheism because it has such a World View. Humanism is also better than Theism because its World View is a better World View than that of any religion. Atheism is wanting in a World View and so is inferior to Humanism (truth to tell, Dr Cooke probably thinks it worse than Religion). Humanism is Positive; Atheism is not. And so on and so on. After some time, he will stop. The other members of the Council, who are sore afraid of Dr Cooke, will sit quietly in their seats, gently quivering. Finally, the President will break the silence by saying that the matter will need further consideration. Such consideration will never reveal itself.
And so it goes. Elizabeth McKenzie, former President of the NZARH, used to mutter that nothing would ever be achieved by the Association until Dr Cooke's supporters died off. And how right she was. The Councillors are all terrified of him; they dread that he will split the Association, that he will cause a Schism. Dr Cooke knows this. He also knows that anything as vulgar as a display of Mere Atheism might upset him from his delicately constructed position of authority. Humanism is not just a World View; it is a Meal Ticket as well. Dr Cooke is a sage. He knows things. His Humanism is a complicated and difficult construction (some would say an incoherent one, but that is another matter). A simple appeal to godlessness could knock it down in an instant.
And so, nothing will be done. The Council will return to its normal business of collecting rents and maintaining the building. The threat of action will recede, as will the hair of the new member, while he waits for the opportunity to do something. Dr Cooke will continue to write his essays on the Meaning of Humanism. The members will slowly die off and the Council will arrange for flowers to be sent to their relics. Bequests will be received and invested. Occasionally, a young person will join, but will not stay long. Eventually, there will be no-one left. And so will end the New Zealand Association of Rationalists and Humanists (Inc), the once-bold attempt to represent the views of non-religious people in New Zealand.
Meanwhile, the non-religious people of New Zealand, who remain ignorant of any need to be represented in their non-religiousness, will just get on with their lives.