I have a question,
Can Lunyr import all the Wikipedia articles which have CC License ?
CC licence articles are free to be copied. Most of the articles on Wikipedia are CC licenced.
If Lunyr imports all those articles , Lunyr will already become very large database. Later the contents may be modified by others.
Any content that is freely and publicly available can be written into Lunyr. However, just like all content submissions to the knowledge base, you must provide the source for reviewers to examine.
Sources can be "Wikipedia" and 'References' in Wikipedia.
I'm not in favour of importing each article one by one by users.
Instead, Lunyr can use a bot that does that. Bot can also ignore controversial topics, automatically add references at bottom, etc.
The imported content may be edited by reviewers.
Afterwards, new content from publishers could replace the articles of Wikipedia.
This way Lunyr would become big enough for users to shift from Wikipedia to it. So, more publishers would be interested in published new matter on Lunyr as it would have a good user base.
This I think is a better solution to the chicken or the egg problem.