attempted robbery
If you go to a bank and attempt to steal money, but you were unsuccessful in doing so, there wouldn't be any loss, but you'd still go to jail and it's widely accepted as wrong.

Unsuccessful attempt to take away? Well, you can point out who was loosing files.

you're leeching off someone else's time and resources, and taking away money that could have been paid to them, for your own selfish desires.

Except saud developers were fired 10 years ago. If you were truly pro-copyright, you would make it personal and inalienable.