Triggered by this comment.
Some code-golf answers assume a specific locale. For example this answer assumes a locale of
en_US.UTF-8. If the default locale on a given system uses a different encoding, then the answer becomes invalid. In order to make it valid, extra code to set the LC environment variables needs to be added with the effect of increasing the CG score.
@FUZxxl and I had an interesting discussion on this. I think we'd both like to see a community consensus on this one.