Good news, everyone! Yesterday Zerono had some time to fix all region permissions and the whole station is protected properly now. That also means that you can't place signs on the outside of your pod. For now to ask a mod or admin to do that for you.
And since the staff members aren't always available 24/7 (as we're living in different time zones or are working on other server issues) the best place to request something is the new Help desk board on the forum. Post it there and we will take the time to solve your request.