There should be a rule that prohibits these "cords" altogether. Not a single poster improves by joining one of those communities - they just become part of an echo chamber hivemind and turn hostile. Even worse, many of them have "popular" cliques that bully posters into aligning their opinions with more extremist mindsets. People are always asking why the quality of discourse has gone done so much over the last few years, and there's your obvious answer.
Since Discord isn't going to help enforce the rule, the only choice is to autoban anyone who participates in one.
I would strongly argue that continued problematic behavior by long-time and prolific posters (including but not limited to habitual sock makers) has facilitated the rise and proliferation of Leipverse Discord servers.
There is a lot of value in having Leipverse-affiliated spaces that aren't visible to the public, especially for sharing more personal information that isn't strictly elections or psephology related. The only one I'm aware of that isn't a Discord server is AAD, which arose out of some sort of disagreement with the mid-2010s US Elections Atlas forum mods over moderation standards.
