This sounds like the sort of thing where you have to sue someone to force the court to sort out legalities. Sort of like the RIAA/MPAA suing Joe Does that are a

This sounds like the sort of thing where you have to sue someone to force the court to sort out legalities. Sort of like the RIAA/MPAA suing Joe Does that are associated with an IP to figure out who is on the other end of it. If Zuck is using the court to force a sale, then it's a total asshole/dick move. If he's using the court to sort out ownership of land so that he knows who he needs to deal with to buy it (as a normal transaction), that's another story.