HN is a circle-jerky echo chamber? Really? I can't really disagree strongly enough with this.<p>Back when I was a reddit junkie, I found that my use of the site was actively making me unhappy. Sure, people came from more diverse backgrounds, but the structure of the community encourages rhetorical maneuvering and brutal riposte. The problem was that I was <i>good</i> at it, and I was really addicted to the absurd emotional attachment that I had to watching people agree with me. Of course, that attachment went both ways, but as with most experiences, the negative experiences were more mentally prominent than the positive. The result was that I felt bitter a lot of the time, and when I channeled that bitterness into acerbic responses, I was <i>rewarded</i>. This is not good for the soul.<p>This, I think, illustrates two important points about exclusivity.<p>First, the cutthroat nature of high-karma commenting on reddit is in many ways a direct result of the site's laissez faire voting. Anyone can downvote anyone, and the exact total of those votes is then shown to everyone. I made this problem worse by writing Reddit Uppers and Downers, which shows the upvote and downvote counts separately. Two subtle but important ways that HN elevates the discourse are by reducing the information presented by voting, and by regulating the downvote privilege. One could decry this as "elitism", but I think the positive effect it has on discussion should not be underestimated.<p>Second, my problem became worse as the reddit community became less exclusive. Arguably, this could have been my own inability to cope with a broader variety of viewpoints, but I think the famed Eternal September problem was the larger issue.<p>The most rapid decline was in the use of downvotes. The guideline that it should be reserved for unproductive comments became ignored more and more with time. This effect was infectious even for established users, and the result was that the downvote button became a "dislike" button.<p>And more gradually, the level of discourse suffered as well. When I joined, reddit was a place where unusual and/or controversial opinions sparked interesting conversation. When I left, soon after the advent of the "sexual content relating to minors" rule, arguing that maybe the rule was a tad too broad would often get you labeled as a pedophile.<p>And the thing is, I still like seeing a comment get upvoted on HN. But what makes me <i>happy</i> is when someone disagrees with me and is willing to put thought into telling me <i>why</i>, and, if I'm lucky, actually <i>convinces me to change my position</i>.<p>If you want to maintain that scenario, you need to make sure that new members of the community are instated gradually enough that the community's principles aren't compromised. If that comes at the cost of a little intellectual diversity, then so be it.