I think this would be a bad idea, but it would be a good idea. I think it is a good idea because you can detect who is griefing at your plot, someone invisible at your plot. This perk should be for everyone else. Doing /near detect everyone that is near or close from you from distance, with revealed names. This benefits the server for anti-griefing. You should do this to the nearest griefer, and do /near
This is actually a pretty cool idea, because people in gm3 could just watch you building without you even noticing