iiNet has taken on the task of testing the government's ridiculous internet filter, to prove that it won't work well and will slow the internet. Big tech companies like Telstra and Optus won't take the task on.
Now you naughty people downloading movies and tv shows illegally, have caused a specifically set up organisation called Australian Federation Against Copyright Theft to take you on. Who is your isp? Telstra? Optus? Netspace? A big one? You can sleep soundly. This organisation is taking on the smaller iiNet, alleging that they are not taking any action to enforce their own policies about illegal downloads.
No messing about with the barristers that Telstra and Singtel have at their fingertips. Take on a minnow.