Ah yes... The world size would become huge. Because there's an actual north and south, with specific things only found in those locations. Gunpowder barrels are RIGHT out, because of how much calculations have to happen when BOOM! Not to mention the sappers who cart around TNT and drop active TNT as their attack. Plus it snows a whole lot more in the north and could seriously slow down the server.
So then it probably wouldn't work for this particular community. Well now I feel a little bad for bringing it up, but not too bad.
It COULD have been a good idea. lol