For now, we’ve set up our own Discord server where Didthis users can connect with us to share feedback. We’ve also got a dedicated “show and tell” channel where Didthis users can optionally share their project updates with fellow hobbyists in our small but growing community.
https://blog.mozilla.org/en/internet-culture/introducing-didthis-a-new-app-for-hobbyists/
Discord, very privacy-friendly.