I agree measurements should be made to prevent any attempts to shutdown or harm the network. Prevention is the best remedy.
Another idea would be for LW and the rest of the gnutella developers to develop an encryption standard. New clients would provide the user with the other host permitting the option to establish an encrypted file transfer/connection. Or the client could have an autodetect feature that will automatically encrypt the file transfer if the other host has the appropiate client. This would be ideal for musicians transfering project file s of their music who wish not to share it with everyone or other sensitive documents.
I hope Limewire will please consider this proposal.