It has been several weeks now since the start of the Creative World. I hope everyone is enjoying it as much as I am! As with any new thing there are always teething problems. The main issue at the moment is that people are trying to build several of the same thing/style. For example we have 2/3 greek cities trying to start up. To help tackle this there will be now Official Cities for building in certain styles. Anyone wanting to build in that style must build in the official area. Anyone trying to build somewhere else in that style without proper permission will be asked to move it into the official city.
Please read more in this thread: http://minecraftcc.com/index.php?threads/official-cities-and-areas.2544/