Well, I think here in HN we have a healthy (and educated) level of challenge no? And it seems to have a broad audience in terms of knowledge (not only techies

Well, I think here in HN we have a healthy (and educated) level of challenge no? And it seems to have a broad audience in terms of knowledge (not only techies now) and also lots of countries and cultures. There is a point of critical mass that turns the community very toxic, I can pinpoint when exactly, but my guess is when you can't properly moderate everything anymore. The bigger the community the heavier the moderation.