HN has decently big scale. Somehow it works because of heavy handed moderation, manual, crowdsourced and automated. I think twitter really needs a downvote but

HN has decently big scale. Somehow it works because of heavy handed moderation, manual, crowdsourced and automated. I think twitter really needs a downvote button. But they prefer relying more on their AIs instead of crowdsourced moderation. Probably so they can sell more ads.