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Why? Really, please explain.

• chrischen 17y ago
  Because we can still sort comment by just up voting. But removing down voting would slow down the sorting process, therefore less power is there to disrupt the organization of comments. I'll agree this may be viewed as one disadvantage of the system, but it also means there is less power in the individual to to push down the comment. It would require a bunch of up votes all the other comments in order to push down a comment. That's why letting people to only up vote is less capable of silencing an opposition or unpopular view.