Why hash keys and encrypt data when a node operator could identify them anyway if he tried?
Hashing the key and encrypting the data is not meant a method to keep Freenet Node operators from being able to figure out what type of information is in their nodes if they really want to (after all, they can just find the key in the same way as someone who requests the information would) but rather to keep operators from having to know what information is in their nodes if they don’t want to. This distinction is more a legal one than a technical one. It is not realistic to expect a node operator to try to continually collect and/or guess possible keys and then check them against the information in his node (even if such an attack is viable from a security perspective), so a sane society is less likely to hold an operator liable for such information on the network.
