She “single-handedly invented a new way to undermine Wikipedia,” says a Wikipedian.
From Vice a rather funny story about how A Bored Chinese Housewife Spent Years Falsifying Russian History on Wikipedia. User Zhemao wrote hundreds of linked articles in the Chinese version of the Wikipedia about fictional events, peoples and places in Russian history. Only recently did someone notice. It shows a vulnerability of such crowdsourced resources; a fabulist can create a network of consistent fictions that supporting each other look true.