On Thu, Dec 10, 2015 at 10:27 AM, Gerard Meijssen <gerard.meijssen@gmail.com
wrote:
The case for the CC-0 license is so in line with what the WMF stands for. Our aim is to share in the sum of all knowledge and it is the most obvious way to do it. When Wikidata is found to document falsehoods or established truths that are problematic, we gain a quality where people come to Wikidata to learn what they need to learn.
According to Denny, Wikidata, under its CC0 licence, must not import data from Share-Alike sources. He reconfirmed this yesterday when I asked him whether he still stood by that.
In practice though we have Wikidata importing massive amounts of data from Wikipedia, which was a Share-Alike source last time I looked. Isn't Wikidata then infringing Wikipedia contributors' rights?
Why is it okay to import data from the CC BY-SA Wikipedia, but not from European CC BY-SA population statistics?
There are inchoate and uncomfortable parallels to licence laundering here, which I would hope is not something the WMF stands for. Could someone please explain?