I think the command /f corners would be a good addition as some people join the map later on and it would be easier to find available corners, and it'd also be easier to find peoples bases if you could just check corners with a simple command, for example when you do /f corners (this will show the world in so you would have to warp through different worlds while using it) it would show the corners claimed/unclaimed in the world you are in, and when you hover over the message where it says "claimed" it'll show who claimed it.