It is. But compared with FB, HN has two distinct advantages:
a) The scale is small enough that most content can be manually reviewed, or reviewed after it reaches any significant number of views.
b) People in HN are expecting a professional discussion forum and are largely ok with a relatively active moderation. People posting in FB often assume that any moderation by Facebook the company must comport to freedom of the press or freedom of speech laws. This is of course legally nonsense, but it might not be an unreasonable expectation over all. In some ways, because of the scale of online platforms, the societal effects of FB/Twitter/Youtube content policing norms is closer to say, a code about what is allowed or not on-air in radio/TV in a country than a particular set of editorial policies for a particular newspaper.
a) The scale is small enough that most content can be manually reviewed, or reviewed after it reaches any significant number of views.
b) People in HN are expecting a professional discussion forum and are largely ok with a relatively active moderation. People posting in FB often assume that any moderation by Facebook the company must comport to freedom of the press or freedom of speech laws. This is of course legally nonsense, but it might not be an unreasonable expectation over all. In some ways, because of the scale of online platforms, the societal effects of FB/Twitter/Youtube content policing norms is closer to say, a code about what is allowed or not on-air in radio/TV in a country than a particular set of editorial policies for a particular newspaper.