Well..
1) You cannot spoof every node, just drones or peripherals. Nodes generating Persona; commlinks i.e., are "unspoofable".
2) You can spoof node to peripheral or linked device to perform some kind of action. On the other side, without subscription, means without being present in the node, you dont have acess to anything node contains and you don`t even have idea what node contains, because you cannot roll matrix perception inside. So if you want data, which is, at most cases, reason why people hack nodes, you need to subscribe and get your persona inside the node. No spoof would do this for you, it can only help you to prepare the way.