The thing is that HN is essentially run like singapore - a benign-seeming authoritarian dictatorship that shuts down conflicts early and is also relatively small and self-contained. One thing that doesn't get measured in this analysis is the number of people who leave because they find that this gives rise to a somewhat toxic environment, as malign actors can make hurtful remarks but complaints about them are often suppressed. Of course, it tends to average out over time and people of opposite political persuasions may both feel their views are somewhat suppressed, but this largely reactive approach is easily gamed as long as its done patiently.