Notices where this attachment appears
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https://www.propublica.org/article/facebook-hate-speech-censorship-internal-documents-algorithms
This is really a key advantage for the fediverse, because humanity is not a homogeneous substrate and it's always going to be impossible to "apply consistent standards worldwide". It's the problem of a single centralized authority trying to make everyone fit into its categorizations.
Rather than try to deploy a one-size-fits-all set of rules for the entire world it's better to let affinity groups manage themselves and to have their own particular standards in accordance with their culture/history/beliefs. But this is something which Facebook couldn't easily implement without breaking the business model. It's their Achilles heel.