1Point3Acres () is a Chinese-language website. It is a forum for Chinese people in North America who are students and workers to discuss schools, employers, and the visa policy of the United States. It was co-founded in 2009 by a man who goes by the username Warald and Guo Yu (). 1Point3Acres in January 2020 created CovidNet to track real-time data about COVID-19 on a county level including information about infections, recoveries, and deaths. By June 2020, CovidNet was used by over 500groups and by June 2021, it had received over 500billion views. The Centers for Disease Control and Prevention, Esri, Johns Hopkins University, and the University of Chicago used it to track the outbreak. History 1Point3Acres was co-founded in 2009 by a man who goes by the username Warald and Guo Yu (). A 2020 article said Guo, who is from Wuhan, was working as a senior engineering manager of machine learning at Uber. 1Point3Acres is operated by Chinese-born immigrants to the United States. It is a North American website that provides Chinese people information about jobs, immigration, and study abroad. For a fee, the website gives users access to companies' interview questions and descriptions of people's interview experiences. The website hosts a page that tracks changes to the visa policy of the United States. The forum is widely used by Chinese people who have moved to North America to study or work. Users in 2020 discussed having the "sword of Damocles" hanging over their heads in response to proposed changes from the United States Department of Homeland Security that would shorten how much time international students could remain in the country. A significant number of the forum's posters in 2023 considered moving back to China and discussed how the American and Chinese work environments were different. For multiple weeks in 2023, the hashtag "#USLayoffs" was popular and numerous commenters discussed visa problems. Forum participants made the hashtags "#IsItTooLateToLearnCoding" and "#HowArtandBizMajorsBecomeProgrammers" trend as many people who had studied majors outside of computer science like education, literature, and finance hoped to find a programming role. On October 12, 2022, a female Chinese student who had graduated from Olin Business School in 2012 made a pseudonymous allegation of sexual harassment on a 1Point3Acres WeChat post against Philip H. Dybvig after he received the 2022 Nobel Memorial Prize in Economic Sciences. CovidNet Headed by the website's co-founder Guo, a volunteer contingent in