Ah, makes sense. But ratings and likes serve another purpose: determining which content is worth looking at. Snapchat aside, those services have the following t

Ah, makes sense. But ratings and likes serve another purpose: determining which content is worth looking at. Snapchat aside, those services have the following they do because the content is tailored to the user: Facebook has their algorithms, r/all is filtered by 10M users, and so on. But HN has an advantage in that it has a specific audience (the sort of people who know that Ycombinator is a thing). So the content is already probably relevant. Maybe that model has advantages we haven't fully explored yet.