“In the three years I’ve spent at Facebook, I’ve found multiple blatant attempts by foreign national governments to abuse our platform on vast scales to mislead their own citizenry,” Zhang wrote in the memo, which, the Guardian reports, Facebook tried to suppress. “We simply didn’t care enough to stop them.” A known loophole in one of Facebook’s products enabled corrupt governments to create fake followers and fake “likes,” which then triggered Facebook’s algorithms to boost their propaganda and legitimacy.