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If you hope Chinese users feel welcome here, you need to make some massive adjustments to the commenting style you exemplified above, because accusing "Chinese nationals" of being responsible for things you don't like on HN, based on (seriously) absolutely nothing, is the stuff that a lot of dark human history has been made of.
I realize that's hard to swallow, because (a) none of us wants to see that in ourselves, and (b) internet forums are just so unbelievably innocuous and trivial, until they aren't, but I'm telling you it's fundamentally the same dynamic. Sometimes it shows up in trivial ways and sometimes in hideous ones. If we want to actually be the tolerant, decent people that we imagine we are, we all need to work on this on ourselves. I don't mean to pick on you personally; it's without a doubt universal.
Thank you for the heads up! I usually don't make that mistake, and it's embarrassing.