Unverified50% confidenceOpinionExact time
Hey Postcard 采用随机送达时间的设计目的是制造温暖的期待感，同时避开发出后盯着屏幕等回复的焦虑循环
1
Sources
50%
Confidence
Long-term
Relevance
8/11/2026
First Seen
Sources
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