These are set and enforced by the 4d2.social moderators.
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Don't infringe others' intellectual property 
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No hate speech on the basis of race, national origin, caste, sex, sexual orientation, gender identity/expression, physical characteristics, age, disability, or disease 
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Don't share others' personal information without their consent 
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No actual or apparent child sex abuse material (CSAM) 
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No fictional, sexually explicit illustrations or animations that appear to depict underage people ("lolicon"/"shotacon") 
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No sexually explicit material combined with text or illustrations suggesting that anyone depicted is underage