I'd caution against drawing general conclusions about HN from spot observations about what does/doesn't get flagged. People usually fall prey to cognitive biases when they do so, e.g. thinking that the community is against them somehow. We're all primed to feel that way; the feeling just hops to different things depending on our different identities.

Occam suggests you needn't look for "Anglo bias" as an explanation for why a story gets flagged when the thread includes "We must get rid of Merkel and the refugees" followed by "What do you suggest, gas chambers?"

(Not that there isn't inevitably going to be something like "anglo bias" on an English-language site. But FWIW the moderators here are acutely aware of, and grateful for, and interested in, the international aspects of the community—definitely including the German ones.)

Good post, that's the impression I get.