Added US 5 (Subscribe to Moderation Providers)

active/39-chat-moderation/README.md

@@ -40,6 +40,7 @@ The MVP provides users with basic moderation tools so that they can block users,
 - [US 2: Reducing SPAM](./user-stories/us-2-reducing-spam.md)
 - [US 3: Filter unwanted content](./user-stories/us-3-filter-unwanted-content.md)
 - [US 4: Advanced filtering with smart contracts](./user-stories/us-4-advanced-filtering-with-smart-contracts.md)
+- [US 5: Subscribe to moderation providers](./user-stories/us-5-subscribe-to-moderation-providers.md)
 
 ### Requirements
 

active/39-chat-moderation/user-stories/us-5-subscribe-to-moderation-providers.md

@@ -0,0 +1,45 @@
+# User Story 5: Subscribe to Moderation Providers
+
+## Description
+
+*User A* discovers a bad quality of her feed regarding advertisement and
+unwanted phrases. She heard about *Moderator A* providing a service for
+better feed quality. She subscribes to *Muderator A* and her feed improves
+by the rules of the moderator.
+
+## Trigger
+
+*User A* wants an improvement of her feed quality.
+
+## Actors
+
+- *User A*
+- *Moderator A*
+
+## Pre-Condition
+
+The feed of *User A* is unfiltered, filtered by own rules or filtered
+by rules of other moderators.
+
+## Post-Condition
+
+The feed of *User A* is filtered like before plus by the rules of
+*Moderator A*.
+
+## Flow
+
+- *User A* opens a global menu and selects the menu point for subbscribing
+  to moderators.
+- A dialog containing list of all so far subscribed moderators plus a field
+  for entering a new one appears.
+- *User A* enters the address of *Moderator A*.
+- The address will be added to the moderator list of *User A*.
+
+## Remarks
+
+- Question: Are filters here and in the other user stories only subtractive
+  or can they also be a kind of valuing (+/- value)? So I can say the phrase
+  "Status" is for me +5 opposite to a moderators -2. This way I can create
+  some adjustment.
+- Discussion: Does the order of subscribed moderators influence the result?
+- Todo: Add user stories for the manipulation of the moderator list.