Facebook’s oversight board on Friday said it overturned four of the company’s decisions in removing content. In one case, Facebook removed a post talking about hydroxychloroquine, a common drug that’s shown some efficacy in treating COVID-19. The board overturned the decision, saying the French user who created the post didn’t encourage people to buy or take drugs without a prescription. Facebook’s decision in the case “did not comply with international human rights standards on limiting freedom of expression,” the board said, adding that it’s rule against misinformation and imminent harm is “inappropriately vague and inconsistent with international human rights standards.” The board recommended Facebook clarify existing rules on so-called health misinformation, including defining key terms such as misinformation, and increase transparency around how it moderates posts that are found in conflict with the rules. In another case, a user posted a quote that incorrectly attributed a quote to Joseph Goebbels, …