The improvements to the Upload Wizard are very welcome, but socially, I think it is still broken. Please correct me if I overlook something or overlook another extension.
Socially, I believe many mediawiki extensions need a way to ask for images on a topic page, provide an upload wizard AND display the results on the topic page. Presently, even if the image is added to the wiki or a commons repository, it simply disappears in a black hole from the perspective of the contributing image author.
I believe it is possible to have a wizard option which does the following:
- store the page context from which it was called.
- upload images to local wiki or a repository
- open the page context in edit mode
- search for some form of new-images-section
- a possible implementation of this could be a div with id=newimages containing a gallery tag
- if new-images-section exists: add images, if not create with new images.
- Save context page.
Presently, WMF is possibly the biggest driver of open content (CC BY/CC BY-SA) but is able to collect images only from the small population that is the intersection of the population or people able to edit mediawiki and the huge population able to provide quality images.
The new-images-section solution would probably not directly work for wikipedia itself; here some more complex review mechanism (new images gallery would be shown only to some users, including image uploader, or so) would be needed, perhaps in combination with flagged rev. I view this feature however potentially as a two step process: implement with direct addition to page, modify to optimize for flagged revs.
However, I think something the described feature would be needed; presently all these crowdsourcing images are mostly collected by projects that either use no open content license at all, or the NC license at best. WMF is not able to exert its potential pull towards open content in this area.