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BB.md

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+NIP-BB
+======
+
+Bulletin Boards
+---------------
+
+`draft` `optional`
+
+A bulletin board is a relay-centric system of forums where users can post and reply to others, typically around a specific community. The relay operator controls and moderates who can post and view content.
+
+A board is defined by `kind:30890`. Its naddr representation must provide the community's home relays, from which all posts should be gathered. No other relays should be used.
+
+# Board Organization
+
+```jsonc
+{
+  "kind": 30890,
+  "tags": [
+    ["d", "<unique_board_identifier>"],
+    ["name", "<board_name>"],
+    ["summary", "<short summary for preview>"]
+    ["image", "<optional_image_url>"],
+    ["relay", "wss://"], // home relay
+    ["relay", "wss://"], // mirror relay
+    ["forum", "<30891:pubkey:dTag>", "<category>"], // forum
+    ["forum", "<30891:pubkey:dTag>", "<category>"], // forum
+    ["forum", "<30891:pubkey:dTag>", "<category>"], // forum
+    ["forum", "<30891:pubkey:dTag>", "<category>"] // forum
+  ],
+  "content": "<board_description and rules>",
+}
+```
+
+Clients must download `kind:30890` and display the forum links in the specified order.
+
+Forums are defined by `kind:30891` and organize threads within specific topics.
+
+```jsonc
+{
+  "kind": 30891,
+  "tags": [
+    ["d", "<unique_forum_identifier>"],
+    ["name", "<forum_name>"],
+    ["summary", "<short summary for preview>"]
+    ["image", "<optional_image_url>"],
+  ],
+  "content": "",
+}
+```
+
+# Treads and replies
+
+Threads are root posts, specified by `kind:892` in Markdown. They reference a forum using an `A` tag.
+```jsonc
+{
+  "kind": 892,
+  "tags": [
+    ["d", "<unique_forum_identifier>"],
+    ["name", "<forum_name>"],
+    ["summary", "<short summary for preview>"]
+    ["image", "<optional_image_url>"],
+
+    ["A", "<30891:pubkey:dTag>", "<board's home relay>"] // the root topic
+  ],
+  "content": "<post_content>",
+}
+```
+
+Replies to each thread are defined by `kind:893` and reference the root thread with an `E` tag. 
+
+Replies do not reference parent replies and MUST be rendered strictly in `created_at` order. 
+
+Users MUST use `>` to quote sections of a previous post if they wish to reply to specific authors.
+
+```jsonc
+{
+  "kind": 893,
+  "tags": [
+    ["A", "<30891:pubkey:dTag>"] // the root topic
+    ["E", "<event_id of kind 892>"], // Thread root
+
+    ["p", "<32-bytes hex of a pubkey>", "<mentioned users' outbox relay>"],
+  ],
+  "content": "<reply_content>",
+}
+```
+
+`q` tags MAY be used when citing events in the `.content` with [NIP-21](21.md).
+
+```json
+["q", "<event-id> or <event-address>", "<relay-url>", "<pubkey-if-a-regular-event>"]
+```
+
+`p` tags SHOULD be added for any user worth notifying, either from a direct mention in the post or because the user was an author of a post in that thread.
+
+# Moderation
+
+Content moderation is performed directly using relay management tools.