It's fairly easy to do accidentally in the case of a large corporation like this: different parts of it don't check with other parts. In this case one part adde

It's fairly easy to do accidentally in the case of a large corporation like this: different parts of it don't check with other parts. In this case one part added some public domain photos to their site, which is scummy but legal, and then another part assumed that those photos were like the many others they have exclusive rights to. In another case mentioned in that article it's a third party which lied to them. Accidental doesn't mean they aren't reckless with their threats, however, which large-scale copyright license collection systems almost by necessity are, and that causes a lot of harm (and they are rightfully losing cases over it).