Add Announcement messages

wiki/Announcement_messages/en.md

@@ -0,0 +1,50 @@
+---
+tags:
+  - announce
+  - announce usergroup
+  - announce user group
+---
+
+# Announcement messages
+
+![Announcement notification](img/notification.jpg "An announcement message notification")
+
+An **announcement message** is a special type of message that's intended for sending longer and formatted messages to multiple users at once. The key differences between announcement messages and regular chat messages are:
+
+- The 1024 character limit instead of 450
+- Markdown syntax support[^note-images] for text formatting
+- Delivery to multiple users at once
+- Ability to bypass the `block private messages from people not on your friends list` setting
+- Only users that can send announcement messages are able to reply to them
+
+## Eligibility
+
+In order to send and reply to announcement messages through the website, you must be a member of the [Global Moderation Team](/wiki/People/Global_Moderation_Team), the [Nomination Assessment Team](/wiki/People/Nomination_Assessment_Team), or the announce [user group](/wiki/People/User_group). However, only members of the announce user group are allowed to send chat announcements through the [osu! API v2](https://docs.ppy.sh).
+
+### Filing a request
+
+You can file a request to join the announce user group by sending an email to [[email protected]](mailto:[email protected]) with the subject `Announce Usergroup Request`. This must be sent from the email address attached to your osu! account.
+
+The body of the email should contain the following:
+
+- Your osu! username
+- An explanation outlining your reason for needing announcement messages, and how frequently you will be using them.
+
+The [account support team](/wiki/People/Account_support_team) will review the request and inform you of their decision.
+
+## Sending announcement messages
+
+In order to send a chat announcement, open the [chat page](https://osu.ppy.sh/community/chat) from your chat notifications and click the `create announcement` button. Input the channel name, description[^note-desc], list of recipients, and your message. Finally, click the `create` button to send the announcement.
+
+![Announcement creation page](img/page.jpg "The announcement creation page")
+
+## Trivia
+
+- Announcement messages are intended to be a direct replacement for old [forum](/wiki/Community/Forum) messages.
+- [Basic implementation](https://github.com/ppy/osu-web/pull/8418) of the announcement system was added to the website on January 26th, 2022. This included the announce user group and the ability to send announcement messages through the API. The user interface for sending chat announcements, alongside allowing moderators to send them, was [added](https://github.com/ppy/osu-web/pull/8747) on June 1st, 2022.
+- The announce user group's ID is 47, it has neither a group badge nor a dedicated colour, and its user listing is private.
+
+## Notes
+
+[^note-images]: Images are not supported in announcement messages.
+[^note-desc]: Unlike other input fields, descriptions are optional.

wiki/People/User_group/en.md

@@ -26,5 +26,5 @@ Clicking the badges will lead to the respective group listings, while the names
 | 32 | [![BN](/wiki/shared/group/BN-prob.png)](https://osu.ppy.sh/groups/32) | [Beatmap Nominators (Probationary)](/wiki/People/Beatmap_Nominators#probationary-beatmap-nominators) | Probationary BN that await a positive evaluation to confirm their presence in the team as a full member. |
 | 33 | ![PPY](/wiki/shared/group/PPY.png) | ppy | Reserved for [peppy](/wiki/People/peppy), the creator of osu! |
 | 35 | [![FA](/wiki/shared/group/FA.png)](https://osu.ppy.sh/groups/35) | [Featured Artist](/wiki/People/Featured_Artists) | Musical creators who have partnered with osu! |
-| 47 |  | Announce | Users with permission to send announcement chat messages  |
+| 47 |  | Announce | Users with permission to send [announcement chat messages](/wiki/Announcement_messages) |
 | 48 | [![BSC](/wiki/shared/group/BSC.png)](https://osu.ppy.sh/groups/48) | [Beatmap Spotlight Curators](/wiki/People/Beatmap_Spotlight_Curators) | Responsible for selecting high-quality maps for the [Beatmap Spotlights](/wiki/Beatmap_Spotlights) |