Unverified50% confidenceFactExact time
Karma是Reddit的核心声誉系统，分为帖子karma和评论karma两种，通过upvote增加、downvote减少
1
Sources
50%
Confidence
Long-term
Relevance
8/22/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedHacker News uses a karma-based voting system, where users must accumulate sufficient community contributions to gain downvoting and flagging privileges.65% similarUnverifiedReddit uses karma points as a measure of social recognition.63% similarUnverifiedReddit使用对数衰减算法计算karma，前几十个upvote对karma的贡献远大于后续的数千个60% similarUnverifiedReddit's voting mechanism (upvote/downvote) amplifies a dominant sentiment in the early stages of a discussion.57% similarUnverifiedReddit's community interaction model is built on karma points and subreddit culture, with its trending ranking algorithm taking into account vote counts, comment density, and time decay factors.55% similar
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