"The investigation shows how Facebook has allowed major abuses of its platform in poor, small and non-western countries in order to prioritize addressing abuses that attract media attention or affect the US and other wealthy countries. The company acted quickly to address political manipulation affecting countries such as the US, Taiwan, South Korea and Poland, while moving slowly or not at all on cases in Afghanistan, Iraq, Mongolia, Mexico, and much of Latin America."
https://www.theguardian.com/technology/2021/apr/12/facebook-loophole-state-backed-manipulation
"When Zhang uncovered a network of fake accounts creating low-quality, scripted fake engagement on politicians in the Philippines in October 2019, Facebook left it to languish. But when a tiny subset of that network began creating an insignificant amount of fake engagement on Donald Trump’s Page in February 2020, the company moved quickly to remove it."