I'm curious about the format of the URLs that will be used to display articles.
Will this include a "path" including the niche?
If the article is posted in multiple niches (I understand the limit is three), will there be multiple URLs that point to the same article? Because if so, this will incur a "duplicate content penalty" with search engines, which would be a disincentive for the author to share the content in more than one niche.
This of course would not be an issue if each article is assigned a unique URL which does not include a niche reference.