I cannot agree with you, with little effort, I'm pretty sure that it can be added a feature in the game that when the room or an object is published the first time, the game embed the code or account ID somewhere crypted in the .world file and the owner can claim the ownership if he find the room stolen a published by someone else, thus the stealing account can be punished in some way. You don't own the rooms but there should be an option to protect your intellectual property. The rule for not owning rooms by you can be applied to game owners, not the other players.