diff --git a/72.md b/72.md
index 582410ad29..549b0879d1 100644
--- a/72.md
+++ b/72.md
@@ -6,7 +6,7 @@ Moderated Communities (Reddit Style)
 
 `draft` `optional`
 
-The goal of this NIP is to enable public communities. It defines the replaceable event `kind:34550` to define the community and the current list of moderators/administrators. Users that want to post into the community, simply tag any Nostr event with the community's `a` tag. Moderators may issue an approval event `kind:4550`.
+The goal of this NIP is to enable public communities. It defines the replaceable event kind `34550` to define the community and the current list of moderators. Users that want to post into the community, simply tag any Nostr event with the community's `a` tag. Moderators may issue approval events (kind `4550`) for individual posts, and may maintain a list of approved pubkeys with kind `14550`.
 
 # Community Definition
 
@@ -60,9 +60,7 @@ Anyone may issue an approval event to express their opinion that a post is appro
 
 An approval event MUST include one or more community `a` tags, an `e` or `a` tag pointing to the post, and the `p` tag of the author of the post (for approval notifications). `a` tag prefixes can be used to disambiguate between community and replaceable event pointers (community `a` tags always begin with `34550`).
 
-The event SHOULD also include the JSON-stringified `post request` event inside the `.content`, and a `k` tag with the original post's event kind to allow filtering of approved posts by kind.
-
-Moderators MAY request deletion of their approval of a post at any time using [NIP-09 event deletion requests](09.md).
+The event MAY also include the JSON-stringified `post request` event inside the `.content`, and a `k` tag with the original post's event kind to allow filtering of approved posts by kind.
 
 ```jsonc
 {
@@ -71,10 +69,117 @@ Moderators MAY request deletion of their approval of a post at any time using [N
   "tags": [
     ["a", "34550:<event-author-pubkey>:<community-d-identifier>", "<optional-relay-url>"],
     ["e", "<post-id>", "<optional-relay-url>"],
-    ["p", "<port-author-pubkey>", "<optional-relay-url>"],
+    ["p", "<post-author-pubkey>", "<optional-relay-url>"],
     ["k", "<post-request-kind>"]
   ],
-  "content": "<the full approved event, JSON-encoded>",
+  "content": "<the full approved event, JSON-encoded, (optional)>",
+  // other fields...
+}
+```
+
+Likewise, anyone can issue a removal event to express their opinion that a post is NOT appropriate for a community. Clients MAY choose removal events to honor, but SHOULD at least use ones published by the group's defined moderators.
+
+A removal event MUST include one or more community `a` tags, an `e` or `a` tag pointing to the post, and the `p` tag of the author of the post (for approval notifications). `a` tag prefixes can be used to disambiguate between community and replaceable event pointers (community `a` tags always begin with `34550`).
+
+The event MAY also include the JSON-stringified `post request` event inside the `.content`, and a `k` tag with the original post's event kind to allow filtering of approved posts by kind.
+
+```jsonc
+{
+  "pubkey": "<32-bytes lowercase hex-encoded public key of the event creator>",
+  "kind": 4551,
+  "tags": [
+    ["a", "34550:<event-author-pubkey>:<community-d-identifier>", "<optional-relay-url>"],
+    ["e", "<post-id>", "<optional-relay-url>"],
+    ["p", "<post-author-pubkey>", "<optional-relay-url>"],
+    ["k", "<post-request-kind>"]
+  ],
+  "content": "<the full removal event, JSON-encoded, (optional)>",
+  "reason": "<the stated reason for removal, (optional)>"
+  // other fields...
+}
+```
+
+Users MAY request to join a group at any time. When a user is an approved member, their posts should be displayed in the group whether if they are either "approved" or "unapproved", but NOT if the post is "removed."
+
+```jsonc
+{
+  "pubkey": "<32-bytes lowercase hex-encoded public key of the event creator>",
+  "kind": 4552,
+  "tags": [
+    ["a", "34550:<event-author-pubkey>:<community-d-identifier>", "<optional-relay-url>"],
+  ],
+  "content": "<optional-join-reason>",
+  // other fields...
+}
+```
+
+Users MAY request to leave a group at any time. This does not require approval and should be always honored. 
+
+```jsonc
+{
+  "pubkey": "<32-bytes lowercase hex-encoded public key of the event creator>",
+  "kind": 4553,
+  "tags": [
+    ["a", "34550:<event-author-pubkey>:<community-d-identifier>", "<optional-relay-url>"],
+  ],
+  "content": "<optional-leave-reason>",
+  // other fields...
+}
+```
+
+
+Moderators MAY request deletion of their approval of a post at any time using [NIP-09 event deletion requests](09.md).
+
+Moderators may also maintain a list of approved pubkeys, so that any event by the pubkey is automatically considered approved.
+
+```jsonc
+{
+  "pubkey": "<32-bytes lowercase hex-encoded public key of the event creator>",
+  "kind": 14550,
+  "tags": [
+    ["a", "34550:<event-author-pubkey>:<community-d-identifier>", "<optional-relay-url>"],
+    ["p", "<approved-pubkey>", "<optional-relay-url>"],
+    ["p", "<approved-pubkey>", "<optional-relay-url>"],
+    ["p", "<approved-pubkey>", "<optional-relay-url>"],
+    // other approved pubkeys...
+  ],
+  "content": "",
+  // other fields...
+}
+```
+
+Moderators may also maintain a list of declined pubkeys: users who requested to join but were not approved. 
+
+```jsonc
+{
+  "pubkey": "<32-bytes lowercase hex-encoded public key of the event creator>",
+  "kind": 14551,
+  "tags": [
+    ["a", "34550:<event-author-pubkey>:<community-d-identifier>", "<optional-relay-url>"],
+    ["p", "<approved-pubkey>", "<optional-relay-url>"],
+    ["p", "<approved-pubkey>", "<optional-relay-url>"],
+    ["p", "<approved-pubkey>", "<optional-relay-url>"],
+    // other approved pubkeys...
+  ],
+  "content": "",
+  // other fields...
+}
+```
+
+Moderators may also maintain a list of banned pubkeys: users who's posts or requests should not approved.
+
+```jsonc
+{
+  "pubkey": "<32-bytes lowercase hex-encoded public key of the event creator>",
+  "kind": 14552,
+  "tags": [
+    ["a", "34550:<event-author-pubkey>:<community-d-identifier>", "<optional-relay-url>"],
+    ["p", "<approved-pubkey>", "<optional-relay-url>"],
+    ["p", "<approved-pubkey>", "<optional-relay-url>"],
+    ["p", "<approved-pubkey>", "<optional-relay-url>"],
+    // other approved pubkeys...
+  ],
+  "content": "",
   // other fields...
 }
 ```