> I get the impression ATM that copyright infringement is legal as long as nobody complains.
Copyright infringement is never legal. Yes, it's often not enforced until someone complains, but there is a difference between enforcement and legality.
> TL;DR it's not a crime if nobody complains.
It is a crime even if nobody complains, you're just not getting caught or reprimanded. It is possible to hurt someone without getting caught. That doesn't make it okay.
Copyright infringement is never legal. Yes, it's often not enforced until someone complains, but there is a difference between enforcement and legality.
> TL;DR it's not a crime if nobody complains.
It is a crime even if nobody complains, you're just not getting caught or reprimanded. It is possible to hurt someone without getting caught. That doesn't make it okay.