I'm going to have to start using this since I am going to open up my server to a lot of people who are going to be complete strangers.I also do have one suggestion.
/protection rename [oldname] [newname]
And also, when creating an protection area, be able to give a name:
/protection add myhouse jammet
Basically, I think unique names would help a lot. Instead of just having numbers. Maybe limit the name to 20 letters.
Names like [jammetbeachhouse] [bridge] [spawn] and what have you.
So far I've noticed that for some reason, "protection list" works unreliable. I've created and removed a few areas, disconnected, returned later only to find the list empty, but the protection still functional.
And then there's one other idea. Offering the functionality of most of these protection area commands to everyone with needing special permissions, but the areas they create are up for review.
/protection review Would list all areas currently up for review.
/protection tcheck [area] Would teleport you to the area and again tell/remind you the starting and end coordinates (if there is no way to visually hilight something to just you).
/protection check [area] Same thing without teleporting.
/protection okay [area] Saves the protection area and adds the names the player provided.
/protection deny [area] Removes the protection area from the reviews without saving it.