rename "claim"=>"code", get rid of kind 9006 (just use 9000), add a paragraph explaining moderation.

29.md

@@ -42,6 +42,14 @@ This is a hack to prevent messages from being broadcasted to external relays tha
 
 Relays should prevent late publication (messages published now with a timestamp from days or even hours ago) unless they are open to receive a group forked or moved from another relay.
 
+## Group management
+
+Groups can have any number of users with elevated access. These users are identified by role labels which are arbitrarily defined by the relays (see also the description of `kind:39003`). What each role is capable of not defined in this NIP either, it's a relay policy that can vary. Roles can be assigned by other users (as long as they have the capability to add roles) by publishing a `kind:9000` event with that user's pubkey in a `p` tag and the roles afterwards (even if the user is already a group member a `kind:9000` can be issued and the user roles must just be updated).
+
+The roles supported by the group as to having some special privilege assigned to them should be accessible on the event `kind:39003`, but the relay may also accept other role names, arbitrarily defined by clients, and just not do anything with them.
+
+Users with any roles that have any privilege can be considered _admins_ in a broad sense and be returned in the `kind:39001` event for a group.
+
 ## Unmanaged groups
 
 Unmanaged groups are impromptu groups that can be used in any public relay unaware of NIP-29 specifics. They piggyback on relays' natural white/blacklists (or lack of) but aside from that are not actively managed and won't have any admins, group state or metadata events.
@@ -117,12 +125,12 @@ Any user can send one of these events to the relay in order to be automatically
   "content": "optional reason",
   "tags": [
     ["h", "<group-id>"],
-    ["claim", "<optional-invite-code>"]
+    ["code", "<optional-invite-code>"]
   ]
 }
 ```
 
-The optional `claim` tag may be used by the relay to preauthorize acceptances in `closed` groups, together with the `kind:9009` `create-invite` moderation event.
+The optional `code` tag may be used by the relay to preauthorize acceptances in `closed` groups, together with the `kind:9009` `create-invite` moderation event.
 
 - *leave request* (`kind:9022`)
 
@@ -161,13 +169,10 @@ Each moderation action uses a different kind and requires different arguments, w
 
 | kind | name                | tags                                           |
 | ---  | ---                 | ---                                            |
-| 9000 | `add-user`          | `p` with pubkey hex                            |
+| 9000 | `add-user`          | `p` with pubkey hex and optional roles         |
 | 9001 | `remove-user`       | `p` with pubkey hex                            |
 | 9002 | `edit-metadata`     | fields from `kind:39000` to be modified        |
-| 9003 |                     |                                                |
-| 9004 |                     |                                                |
 | 9005 | `delete-event`      |                                                |
-| 9006 | `set-role`          | `p` with pubkey hex and roles                  |
 | 9007 | `create-group`      |                                                |
 | 9008 | `delete-group`      |                                                |