[HAL9000]

And to what legitimate uses are there for such a service?

If you wanted to visit a web site, but did not want your true IP address to be recorded on their log files, you can use a service like ctunnel.com, as the hacker did. It's fairly simple to use with your web browser. Just go to that site and enter the URL of the web site you wish to visit anonymously.

In this case, the hacker violated the terms of service for CTunnel, so the operator apparently had no reservations about giving the information to the FBI.

[Tallguy]

Thanks. That clears it up. But isn’t the very purpose of the service sort of offered with a ‘Nod & a Wink’?