Wikipedia says: "Domain tasting should not be confused with domain kiting, which is the process of deleting a domain name during the five-day grace period and immediately re-registering it for another five-day period. This process is repeated any number of times with the end result of having the domain registered without ever actually paying for it."
Slashdot Mirror
Yes, they use http://www.mediawiki.org/wiki/Extension:TorBlock. There is a client-side bot that blocks open proxies as well.
Wikipedia says:
"Domain tasting should not be confused with domain kiting, which is the process of deleting a domain name during the five-day grace period and immediately re-registering it for another five-day period. This process is repeated any number of times with the end result of having the domain registered without ever actually paying for it."
So I guess that's dead, too?
Also, I believe that tasting was supposed to allow the registrar to recover money in the event of a credit card charge-back or non-paying customer.