Earlier quoted context omitted.
CC is rarely a good license to choose other than to make yourself feel good. It does a terrible job of dealing with the actual matters of importance to a license outside of photo sharing (and even there it's not a good choice, as many photographers have found because it explicitly grants rights to others that the photographer may not be able to to grant to them, leaving the photographer open to lawsuits as has happen…
I'm curious about what you (or anyone else) would recommend as better license choices for datasets that might be used in machine learning model training? (With, I suppose, hints about what restrictions you might be wanting to grant or prohibit by particular license options?)
If that sounds like a crappy legal footing for the next 20 years of software development, yeah, it is. It's also why Mitch Kapor and a few others founded and funded the EFF to try to encourage better case law decisions around the early days of electronic privacy law. We definitely need an EFF like effort around ML/DNN/etc., but I'm not holding my breath.
I wish I had a better answer, I'm mostly hoping someone else here does.