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> Be kind. Don't be snarky. Converse curiously; don't cross-examine. Edit out swipes.
>Comments should get more thoughtful and substantive, not less, as a topic gets more divisive.
>When disagreeing, please reply to the argument instead of calling names. "That is idiotic; 1 + 1 is 2, not 3" can be shortened to "1 + 1 is 2, not 3."
>Don't be curmudgeonly. Thoughtful criticism is fine, but please don't be rigidly or generically negative.