Thank you for proposing this! My answer from last time stands:
But I sure want to be proven wrong on that and, to reemphasize, will help in whatever way makes sense. Including making people I’ve gotten to know from here in the forum (like @narthur) collaborators on Beeminder’s GitHub org if that’s where it makes sense to host such a thing. (Would just need you to sign beeminder.com/cla.)
PS: One new slightly wiki-like thing since that last thread is help.beeminder.com (but I know you mean something focused on the broader community, which sounds wonderful).
PPS: Also potentially relevant is the Beeminder Integrations MEGALIST