> The Creative Commons Non-Commercial (CC BY-NC) license (and also the BY-NC-SA license) substantially hampers the creation of non-commercial derivative works!
In short, it's because BY-NC is incompatible with BY-SA, and the latter is probably enough to discourage exploitative commercial use, anyway.
Yes! It's a huge peeve of mine when two well-meaning free software projects can't share code because of unintentional licence incompatibility. Throwing non-commercial licences into the mix would worsen things a lot.
https://blog.wolftune.com/2011/07/brain-parts-song-video.htm...
The core point:
> The Creative Commons Non-Commercial (CC BY-NC) license (and also the BY-NC-SA license) substantially hampers the creation of non-commercial derivative works!
In short, it's because BY-NC is incompatible with BY-SA, and the latter is probably enough to discourage exploitative commercial use, anyway.