Unverified50% confidenceFactExact time
The negative option model originated in 20th-century mail-order book clubs, where consumers who joined defaulted to agreeing to continuous purchases.
1
Sources
50%
Confidence
Long-term
Relevance
8/17/2026
First Seen
Sources
警惕AI订阅自动续费陷阱：免费试用被扣款的真实教训
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Unverified电商平台技术书籍评分反映的是购买意愿而非学习效果，参考价值有限61% similarUnverifiedThe growth in secondhand book sales is the result of the combined effects of multiple factors including economic pressure, environmental awareness, changes in reading habits after the pandemic, and the development of online platforms, with AI more likely being a catalyst rather than the sole cause.58% similar
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