Unlike other software companies, Quark asks the buyer of the transferred software the quesiton below:
What is the phone number and address of the seller?
Then Quark does all the "investigation". If it is not valid, Quark will not transfer/update the licensee information in its database.
This is really for the protection of the consumer--if the software company is willing to do the footwork (verification of authenticity), why not?
Paul