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Re:Tell HN: Political Detox Week – No politics on HN for one... by dragonwriter on Monday December 05, 2016 @04:45PM (#13109989)
The appearance of a single overwhelmingly-dominant ideological axis is an artifact certain electoral systems produce in the societies that host them. The fewer axes of variation the electoral system supports, the fewer end up significant in discourse in the society.

The "broad" definition is the one in most dictionaries; the narrow one you suggest seems to be the overlap of partisan tribalism with a society with a single overwhelming axis for the reason described above.

In any case, simple utterances of tribalism are already clearly off-topic on HN, whether they are centered on political ideology or not, so clearly an experiment of the type here must be targeting something broader (though apparently also narrower than the dictionary definition of poltiics.)

Re:Tell HN: Political Detox Week – No politics on HN for one... by weberc2 on Monday December 05, 2016 @05:37PM (#13110453)
> In any case, simple utterances of tribalism are already clearly off-topic on HN, whether they are centered on political ideology or not, so clearly an experiment of the type here must be targeting something broader (though apparently also narrower than the dictionary definition of poltiics.)

I think the better explanation is that a lot of tribalism is slipping through the filter, so the filter is becoming more strict for a time.