Discord has a very good anti-abuse system in place that prevents most sockpuppet and spam attacks. The moderation burden on a Discourse is vastly higher than on

Discord has a very good anti-abuse system in place that prevents most sockpuppet and spam attacks. The moderation burden on a Discourse is vastly higher than on a Discord as a result, and since most public forums have no paid moderators, the optimization of effort is strongly in favor of Discord over Discourse.