In order to respect the work of people on the free kemper's database i think it could be useful.
Author's tag should be only editable on the Author's machine.(for amp and cab parts only)
It could be done easily by using the mac adress or the serial number (or both) as private keys.
An hidden field should be added into the amp and cabinet parts in order to store the Author's name crypted with the key(s).
(there are a lot of useless fields)
Then for the edition, this field would be decrypted by using one "key" (mac adress, serial number) of the machine and compare to the author's name registered into the machine.
If it's equal the edition would be allowed.
Quite simple to implement IMO and we will probably see more studio stuff on the rig exchange.