One of the big problems we are having is the number of poorly referenced answers on the site. They often make unsubstantiated and contentious claims without any supporting material, and that's not the standard we should be accepting. Until recently, we had three options on what to do with an uncited answer/statement:
i) Comment and request references, ideally drawing attention to specific points of contention
ii) Downvote (though an accompanying comment would be useful)
iii) Add references yourself to other peoples answers if you think you can provide the material needed
A recent feature was added whereby we could flag for moderator attention and a banner would be added below the answer.
Some of the information contained in this post requires additional references. Please edit to add citations to reliable sources that support the assertions made here. Unsourced material may be disputed or deleted.
However, this has been largely ineffectual.* Most of these banners, along with comments and downvotes, are ignored by the original poster and answers continue to attract upvotes. If we continue to allow poor standards of content checking we'd be no better than PLoS One with the Creator's hand paper (or #AddMaleAuthorgate)...
I suggest we need to find a more effective way of enforcing the provision of citations and references where required.
I've posted some possible answers, but by no means do I think one or any are the perfect solution, and this should be a discussion - answer, comment, and edit posts as necessary (e.g. to add pro's and con's). This is intended to be an open discussion, and abstract and creative solutions are very welcome! Any weaknesses in solutions can be much more easily dealt with as a collective group.
Also it's key to discuss how much time is it fair to give a user to support their material with references before we were to start punishment?