> Even better, these licenses are international, translated into the language and laws of dozens of countries. That means that you can take a CC licensed short story from Japan, animate it using CC licensed 3D models from Italy, set it to a CC licensed soundtrack from Indonesia and release it in Ukraine, and the whole thing just works.

For me it sounds like huge simplification as it assumes that the license exists in vacuum. IANAL and I'm familiar only with Polish IP law, maybe Polish law is some kind of exception, but...

The CC licenses clashes with Polish IP and civil laws hard. In Poland, there is no legal way to waive personal rights to the work, there are no open-ended licenses, and so on.

We don't have the concept of Public Domain, and while effectively some works might have similarly free, the process to determine this is multi-step and quite complex. Effectively, CC-0 simply doesn't work there

So, yeah, I really like the idea behind CC, but personally I wouldn't use it to any serious work.