Let me try to clarify a bit what I was proposing:
Whatever is built in plots that have been purchased will not be wiped (except under extreme circumstances). If someone puts in the effort to get a plot, they will probably not want to waste it on just a random cobble hut. Whatever is built in the sandbox will be wiped on a bi-weekly (every two weeks) basis. This will be made abundantly clear (through signs in the entrance area, a zone welcome message, etc.). Before it is wiped, we will go through it and find exceptional builds that deserve to be saved.
Whatever is built in plots that have been purchased will not be wiped (except under extreme circumstances). If someone puts in the effort to get a plot, they will probably not want to waste it on just a random cobble hut. Whatever is built in the sandbox will be wiped on a bi-weekly (every two weeks) basis. This will be made abundantly clear (through signs in the entrance area, a zone welcome message, etc.). Before it is wiped, we will go through it and find exceptional builds that deserve to be saved.