Nostr has a #forum, now. 🙂 I put it in my #Jumble 🧩 fork. That means it's a website, so you don't have to install anything.
Because it has topic grouping and sorting, rather than follows and feeds, anything you post there can be seen by anyone with read-access to the relay(s) you used.
There are no separate community events or moderators. Nothing but relays. 🤙🏻
Jumble
Jumble - Imwald Edition 🌲
A user-friendly Nostr client focused on relay feed browsing and relay discovery. The Imwald edition focuses on publications and articles.