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by gruez 1831 days ago
It's probably to prevent pointless tit-for-tat downvotes from replies. eg:

1. user A makes a comment

2. user B downvotes user A for disagreeing with him, makes a reply saying why user A's wrong

3. user A sees the downvote (or not), downvotes user B for disagreeing with him, makes a reply saying why user B's wrong

continue ad infinitum.

1 comments

I'm not the parent of this