Comment by zahlman

> There have been some reddit communities over the years doing this, but IME they frequently devolve into echo chambers. It almost always comes down to bad moderators.

In my experience:

Most of them are basically designed to be echo chambers from the start — opposition is only admitted in to the extent that it allows easy targets to knock down. Most people just aren't that good at explaining why they believe what they believe, let along making a convincing argument for it; so all you need to do is set up an environment where one side's position is the default.

There have been a few attempts at explicitly avoiding that problem. They do eventually collapse. But I don't think it's due to bad moderation. It's more that certain factions simply refuse to engage civilly and unemotionally with each other. They will see statements as inherently provocative that the other side genuinely consider matter-of-fact.

I was a moderator for a place like that once. It was remarkable to me how, on the "hot topics" that were polarizing and led to a lot of bans and suspensions, on one side people who were suspended would argue and whine and complain basically as long as we'd listen to them, maybe even the entire duration of the suspension, and they would never get it into their head what our standards were for respectful discourse; and they would even suggest that having such standards was inherently oppressive; and when they got back they would immediately go back to their old ways. And on the other side, people would basically say "LOL, see you on <suspension end date>" and disappear, and come back as promised, and behave themselves for a while.

And while there were a very few people who simply couldn't kick the habit of using slurs or other disparaging terms to refer to identifiable groups of people, there were far more — almost all on the opposite side — who simply couldn't kick the habit of openly insulting the people they were directly responding to. Or at insinuating negative character traits and hidden motivations not in evidence, or other such "dark hinting" as we call it. Or even just of using obnoxious, brutal sarcasm all the time when we expected people to speak plainly.