@xianc78@xianc78@lanodan The way I see it, it's to regulate what mods are allowed. A simple American flag replacement mod for Spider-Man would not be allowed through an EULA, for example.
@berkberkman@xianc78 Not even. All right reserved already means you cannot do modifications legally. (That said some "mods" are more like extensions/plug-ins so copyright gets more relaxed and community guidelines plus moral rights are more relevant)