I've had this idea for some time already where if you post something news-like, you should attach a link to your sources, like "citation needed" for non-Wikipedia text. I know that sounds bland and like basic journalistic practice - but it is not, nor should be followed by professional/accredited journalists who of course need to be able to protect their sources and publish on their own site; it's intended for social media only. The idea is to get people used to look for a badge or some such at the bottom of a text that, when absent, immediately should ring a bell and put people on alert. Basically, it adds a "who said this" or cui bono dimension to every published text on aggregator sites unless it appears on a dedicated site.

Maybe we could have a competition for graphic artists and award a prize for the best icon or visual idiom for this?