We must understand the word 'silo' differently. Twitter and Facebook are the leading examples of siloed sites in my sense of the word. Twitter has follow lists, Facebook has the social graph. Similarly, on Reddit there are subreddits. HN has no mechanism like any of these: everyone is one big room, for better and for worse.
Re 23743914: I've banned that account. We didn't see that post at the time. I don't think it's typical for such a comment to get upvoted. From what I see, the vast majority get downvoted and/or flagged and/or moderated.
I think this has significant effects, which I wrote about here: https://news.ycombinator.com/item?id=23308098
Re 23743914: I've banned that account. We didn't see that post at the time. I don't think it's typical for such a comment to get upvoted. From what I see, the vast majority get downvoted and/or flagged and/or moderated.