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Through an international survey with 1,696 internet users across 8 different countries across the world, this empirical study examines how international users perceive harmful content online and the similarities and differences in their perceptions. We found that across countries, the perceived severity consistently followed an exponential growth as the harmful content became more severe, but\n                    <jats:italic>what<\/jats:italic>\n                    harmful content were perceived as more or less severe varied significantly. Our results challenge platform content moderation\u2019s status quo of using a one-size-fits-all approach to govern international users, and provide guidance on how platforms may wish to prioritize and customize their moderation of harmful content.\n                  <\/jats:p>","DOI":"10.1371\/journal.pone.0256762","type":"journal-article","created":{"date-parts":[[2021,8,27]],"date-time":"2021-08-27T13:37:33Z","timestamp":1630071453000},"page":"e0256762","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":69,"title":["Understanding international perceptions of the severity of harmful content online"],"prefix":"10.1371","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8951-5750","authenticated-orcid":true,"given":"Jialun Aaron","family":"Jiang","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Morgan Klaus","family":"Scheuerman","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Casey","family":"Fiesler","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4826-8324","authenticated-orcid":true,"given":"Jed R.","family":"Brubaker","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2021,8,27]]},"reference":[{"key":"pone.0256762.ref001","volume-title":"Custodians of the Internet: Platforms, Content Moderation, and the Hidden Decisions that Shape Social Media","author":"T Gillespie","year":"2018"},{"key":"pone.0256762.ref002","unstructured":"Fick M, Dave P. 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