Hi, Tim! I’m the Head of Product for Zulip. Thank you for your post!
We have just added a feature (currently in beta) that lets you make Zulip as accessible and public as a forum! We have added your organization to the beta, so you can now follow the instructions here to make any stream in your organization viewable without logging in.
You can get a preview of web-public streams by clicking the “Access without an account” button for our development community at https://chat.zulip.org/.
We sponsor free Zulip Cloud Standard hosting for over 700 open-source projects, non-profits, education, and academic research groups. All eligible organizations are encouraged to join the program!
If you are up for it, I'd love to chat more about your experience. You can find me in the https://chat.zulip.org/ community or reach out at email@example.com.