from Wiki link you provided: "The case therefore highlights the serious consequences for Australian internet users who are charged with pirating US copyright-protected material".
Isn't really that hard to see we are living in a different world today than 10 years ago? I may be overstating, but in todays world you can setup a server in Cambodia and given enough traffic/brilliant idea/etc, make million of dollars off of US citizens, or citizens of any other nation laying on the antipodes. IF you have such an idea, it goes beyond being a web-designer, database engineer or smart businessman - you need to also be aware of the laws in the countries you're doing business with, especially if you bringing some serious income and your business idea is not the cleanest one under the sun. Heck, even Amazon itself is fighting US government on the tax issues.
http://tnreport.com/blog/2011/07/18/many-states-grappling-wi...