Improving Wikipedia's signal-to-noise ratio
"Wikipedia editors have voted to ban the Daily Mail as a source for the website in all but exceptional circumstances after deeming the news group “generally unreliable”.
The move is highly unusual for the online encyclopaedia, which rarely puts in place a blanket ban on publications and which still allows links to sources such as Kremlin backed news organisation Russia Today, and Fox News, both of which have raised concern among editors.
The editors described the arguments for a ban as “centred on the Daily Mail’s reputation for poor fact checking, sensationalism and flat-out fabrication”."Wikipedia bans Daily Mail as 'unreliable' source | Technology | The Guardian