Who's Public Sphere?

So we launched our Grafton Street Game yesterday morning, and much to our dismay, our posters were taken down within a couple of hours due to 'sensitive material' printed on the posters. This came as quite a shock considering that the project was in collaboration with Dublin City Council and all of the information printed on the boards were public knowledge available to the public realm.
Such a swift dismantling of our project and of most of the other collaborators work raises a number of  interesting questions, some of which we initially set out to question.  Who owns the public realm? It might seem a silly question but considering our project was not allowed to be visible due to the critical nature of some of the material suggests it is not as open as it is perceived to be.
In light of yesterday's actions we hope to pursue the reasons behind the sabotaging of the collaboration.
This is not the end!.......

Here are some of the posters that were taken away