user docs: Add moderating open organizations.

templates/zerver/for/open-source.md

@@ -25,6 +25,12 @@ Allow anyone to
 You can also link to your Zulip with a [badge](/help/join-zulip-chat-badge)
 in your readme document.
 
+### Moderate your community
+
+Moderation is a big part of making an open community work. Zulip was built
+for open communities from the beginning and comes with
+[moderation tools](/help/moderating-open-organizations) out of the box.
+
 ### Authenticate with GitHub
 
 Allow (or require) users to
@@ -56,12 +62,6 @@ Efficiently refer to issues or code reviews with notation like `#1234` or
 [custom linkification filter](/help/add-a-custom-linkification-filter) for
 your organization.
 
-### Enforce a code of conduct
-
-Link to your community norms or give other instructions right on your Zulip
-registration page. Admins can delete messages and deactivate (ban) users at
-any time.
-
 ### Hundreds of integrations
 
 Get events from GitHub, Travis CI, JIRA, and

templates/zerver/help/include/sidebar_index.md

@@ -114,6 +114,7 @@
 * [Manage who can join](/help/manage-who-can-join-and-invite)
 * [Set the default language for new users](/help/change-the-default-language-for-your-organization)
 * [Export your organization](/help/export-your-organization)
+* [Moderating open organizations](/help/moderating-open-organizations)
 * [Deactivate your organization](/help/deactivate-your-organization)
 * [GDPR Compliance](/help/gdpr-compliance)
 

templates/zerver/help/moderating-open-organizations.md

@@ -0,0 +1,44 @@
+# Moderating open organizations
+
+Zulip aims to be the best chat possible for open organizations. Moderation
+is a big part of making an open community work.
+
+## Prevention
+
+* [Disallow disposable email addresses](/help/manage-who-can-join-and-invite),
+  or [require users to log in via GitHub](/help/configure-authentication-methods).
+* Restrict who can [create streams](/help/configure-who-can-create-streams),
+  [create bots](/help/restrict-bot-creation) or
+  [add custom emoji](/help/only-allow-admins-to-add-emoji).
+* Link to a code of conduct in your
+  [organization description](/help/create-your-organization-profile)
+  (displayed on the registration page).
+* Create at least one
+  [default stream](/help/set-default-streams-for-new-users) where only
+  admins can post.
+
+## Response
+
+* [Ban (deactivate) users](/help/deactivate-or-reactivate-a-user) acting in
+  bad faith. You can reactivate them later if they repent.
+* Delete messages, [delete streams](/help/delete-a-stream), and
+  [unsubscribe users from streams](/help/add-or-remove-users-from-a-stream).
+* Rename topics.
+* [Change users' names](/help/change-a-users-name) (e.g. to "Spammer")
+* [Deactivate bots](/help/deactivate-or-reactivate-a-bot) or
+  [delete custom emoji](/help/add-custom-emoji#delete-a-custom-emoji).
+
+## In the works
+
+* **Mark as spam**. This will allow non-admins to collectively impose a
+  temporary ban on a user.
+* **Delete spammer**. This will wipe the user from your Zulip, by deleting
+  all their messages and reactions, banning them, etc.
+* **Mute user**. This will allow an individual user to hide the messages of
+  another individual user.
+* **New users join as guests**. This will allow users joining via open
+  registration to have extremely limited permissions by default, but still
+  enough permissions to ask the core team a question or to get a feel for your
+  community.
+* **Public archive**. This will give a read-only view of selected streams,
+  removing the need in some organizations for having open registration.