YouTube plans to counter conspiracy theories using Wikipedia, an idea that generated surprise and scepticism from the open-source encyclopaedia.

The Google-owned video giant has come under criticism for its role in disseminating false and extremist content, the site’s algorithms promoting hoaxes and conspiracy theories in the frenzied aftermath of breaking news events like mass shootings.

In an effort to rebut false information, YouTube CEO Susan Wojcicki unveiled a new initiative that will pair videos founded on shaky premises with “information cues”, or text boxes that direct users to third-party sources like Wikipedia.

The announcement caught Wikipedia off guard, with the Wikimedia Foundation saying in a statement that it had not entered a formal partnership with YouTube and was not given advance noticed of Ms Wojcicki’s talk.

Thousands of editors are already at work monitoring and seeking to “combat conspiracies, pseudo-science, fringe theories, and more”, the statement said, lending experience to the kind of fact-checking operation YouTube suggested.

But people who work with Wikipedia had doubts that the platform - which relies on contributors adding and editing material in its vast online repository - was the ideal tool to help fix YouTube’s misinformation problem.

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“I don't think YouTube can rely on our irregularly updated *encyclopedia* to solve its ranking algorithm/hate speech issue”, a Wikipedia contributor named Phoebe Ayers wrote on Twitter.

“It's not polite to treat Wikipedia like an endlessly renewable resource with infinite free labor”, she added.

The Wikimedia Foundation’s executive director, Katherine Maher, echoed Ms Ayers’ point about relying on Wikipedia’s volunteer base, saying the site already lacked the level of “support that is critical to our sustainability”, and warning that Wikipedia was not always accurate.

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“We don’t want you to blindly trust us”, Ms Maher wrote on Twitter.