Apparently the .PL registry has introduced a traffic tasting service allowing registrants to register a name for up to five days in order to see if there is any traffic on it. The registry writes:

Thanks to New Domain Name Tasting (DNT) service you can check profits and possibilities which an own domain gives as well to test the traffic before registration. Please, contact with the Registrar offering DNT service, choose the domain and let start with the test for 5 days! Please contact with the Registrar offering DNT service for more informations.

You will find a listing of the current .PL registrars here.

[via DomainNews]