Not the paper's doing, this sort of thing is public knowledge:
Edinburgh Camera Locations
Mobile Camera Deployments
The cameras now also need to be suitably visible - hence the high viz paint job they got some years' ago.
I think it was part of a move to demonstrate that they were for safety, not for generating revenue by "catching people out".
---Edit---
They also tweet:
Lothian and Borders Safety Camera Partnership spokesperson, Victoria Edmond said:
“By tweeting we are offering those who currently access social media quick and up to date safety camera information. People should not be surprised that we are telling drivers where the cameras will be, as we want motorists to think about their driving and reduce their speed rather than detect them speeding. I would ask that all road users drive within the speed limit to help make the roads safer for all.
Robert