Wikimedia Apps/Share a fact

About
Share a fact is feature on Wikimedia apps that allows sharing text extract from WP articles. It is available on both Andriod and iOs, where users can highlight text from within articles, and share it with a background of the lead image. The feature we announced on Wikimedia blog in early April 2015.

Open Questions
Is it possible to check for an association between people making an article contribution and using Share-A-Fact? In particular, people contributing to an article and then Share-A-Facting that same article within a half hour or so? Alsee (talk) 22:14, 20 April 2015 (UTC)
 * Copyright issues when sharing a "fact" with images: Attribution is lacking. For details, see previous discussion. Problems are namely:
 * Authors are not credited (neither for text nor for images)
 * An often wrong license is attributed (the generic CC-by-sa icon shown with each "fact" does not reflect the actual variety of media licenses at Wikimedia Commons)
 * Public domain content is falsely attributed with a CC-by-sa icon.
 * CC-by-sa requires at least an URI, in some language versions specified as the internet address, of the full license legal code; GFDL requires a local copy of the ful license text.
 * Unauthorized sub-licensing of Wikipedia contents by "sharing a fact" to platforms like Facebook, Instagram, Twitter. For details, see previous discussion and a previous WMF legal notice here.
 * YouTube video by WMF doesn't credit authors either