He meant a building type of server, which can work but will require more then 1 world/map/server.
@inkLariat: There already is some good anti-grief server side mod, like disable the use of dynamite, character roll back and other stuff.
For those that doesn't know yet, below is a full pic of a large world. Please note this is a very large picture (8400 x 2400 size, 4mb) and that you are just a tiny dot in the world...
http://nz.x10.mx/b/terrarialarge.png

