It would be cool if you could take a node down. Necessitating its owner to rebuild it, perhaps over time. More than just defacing them. Secondarily, then, make nodes that aren't just websites, but control certain functions in the world. If you take down the lev node, the levs all stop for a certain amount of time. If you take down the NLM-HR node, nobody can use the employee terminal for a time.
Inconveniences that users can exploit, and use in ways that made the grid feel more meshed with the physical world.
