I wouldn't go so far as to say that universally. There are different communities in the comments at each site and in some cases there is a healthy relationship

I wouldn't go so far as to say that universally. There are different communities in the comments at each site and in some cases there is a healthy relationship between the different sites: * This is what HN thinks, what does reddit think * LoL @ reddit, what do you think HN? ...when the communities are healthy, each has an interesting perspective to add.