These rules have undergone revisions over time. For instance, in May 2021, Meta announced that it would no longer remove claims suggesting COVID-19 was “man-made.” As highlighted by the Oversight Board, between March 2020 and July 2022, Meta removed approximately 27 million Facebook and Instagram posts containing COVID-19 misinformation.
Twitter ceased enforcement of its COVID-19 misinformation policy in November, following organizational changes that occurred after Elon Musk assumed control of the company. Likewise, YouTube recently updated its misinformation policy to no longer prohibit videos featuring denialism regarding the 2020 election.
