“Happy birthday Wikipedia! So glad you exist.” So wrote billionaire Elon Musk on X, then Twitter, back in January 2021, on the 20th anniversary of the launch of the free online encyclopedia. Like the many others who regularly access the crowd-sourced site — more than a billion a month — he apparently regarded it as an invaluable free tool and noble undertaking that had democratized human knowledge the world over, all thanks to the tireless work of tens of thousands of volunteer editors and the

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