Unverified50% confidenceFactExact time
静默降级（Silent Downgrade）指服务商在不明确通知用户的情况下单方面降低已承诺的服务标准或功能权限
1
Sources
50%
Confidence
Long-term
Relevance
7/12/2026
First Seen
Sources
Perplexity Pro Quota Plummets to 10 Queries a Day: User's Complaints Met With Customer Support Silence
redditr/perplexity_ai7/11/2026
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