Passage: 'Social media platforms face a persistent tension between free expression and content moderation. Too little moderation allows harmful misinformation and harassment to proliferate; too much risks suppressing legitimate speech and centralizing power over discourse. Platforms have responded with algorithmic filtering, human review teams, and community-based flagging systems, none of which has resolved the underlying tension.' The passage suggests that content moderation is difficult primarily because:
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A
Technology is not yet sufficiently advanced to accurately detect harmful content
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B
Users are largely unwilling to report problematic posts to platforms
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C
Any approach to moderation involves trade-offs between competing values
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D
Platforms profit from controversial content and therefore resist effective solutions