I am a long time lurker and I often simply search out information in hopes others have experienced similar situations and follow the help that has been given to them.
However in this case, I haven't found any information. And with the 5.2.0 patch that was just released, the situation might be...
Is it piracy if it was released for free? Not in my opinion, but I also think it's not piracy if buying it isn't owning it, and it's not piracy if you can't buy it from the original creators anymore.