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By doing so, perceived hostility is introduced as an interactional factor explaining minority\u2019s expression (un)likelihood. Results from a 2 (comment civility: civil vs uncivil) \u00d7 3 (supportive-comment proportion: 15% vs 30% vs 45%) ( N = 807) revealed that perceived hostility from uncivil comments is lowered at the 30% supportive threshold, which then leads to greater likelihood of public expression by minority opinion holders (i.e. moderated mediation). Supportive-comment proportions were, however, not found to directly affect perceived hostility in civilized discussions. Overall, minority opinion holders are more likely to react via emojis ( Like, Love, Haha, Wow, Sad, Angry) in SNSs than to post comments. The implications of findings for the spiral of silence in online settings are discussed.<\/jats:p>","DOI":"10.1177\/1461444819851056","type":"journal-article","created":{"date-parts":[[2019,5,30]],"date-time":"2019-05-30T06:01:45Z","timestamp":1559196105000},"page":"2483-2504","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":21,"title":["\u201cTipping point\u201d in the SoS? Minority-supportive opinion climate proportion and perceived hostility in uncivil online discussion"],"prefix":"10.1177","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0612-5456","authenticated-orcid":false,"given":"Marie Angela M","family":"Ordo\u00f1ez","sequence":"first","affiliation":[{"name":"National University of Singapore, Singapore"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Elmie","family":"Nekmat","sequence":"additional","affiliation":[{"name":"National University of Singapore, Singapore"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2019,5,30]]},"reference":[{"key":"bibr1-1461444819851056","doi-asserted-by":"publisher","DOI":"10.1016\/S0167-9236(02)00190-2"},{"key":"bibr2-1461444819851056","doi-asserted-by":"publisher","DOI":"10.1007\/s12290-016-0395-5"},{"key":"bibr3-1461444819851056","doi-asserted-by":"publisher","DOI":"10.1080\/17512786.2011.648988"},{"key":"bibr4-1461444819851056","unstructured":"Bradshaw S, Howard PN (2017) Troops, trolls and troublemakers: a global inventory of organized social media manipulation. 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