finish up docs

docs/admin/domain_permission_subscriptions.md

@@ -2,11 +2,12 @@
 
 Via the [admin settings panel](./settings.md#subscriptions), you can create and manage domain permission subscriptions.
 
-Domain permission subscriptions allow you to specify a URL at which a permission list is hosted. Every 24hrs at 11pm (by default), your instance will fetch and parse each subscribed list, and create domain permissions (or domain permission drafts) based on entries in the lists.
+Domain permission subscriptions allow you to specify a URL at which a permission list is hosted. Every 24hrs at 11pm (by default), your instance will fetch and parse each list you're subscribed to, in order of priority (highest to lowest), and create domain permissions (or domain permission drafts) based on entries discovered in the lists.
 
-## Limitations
+Each domain permission subscription can be used to create domain allow or domain block entries.
 
-Currently, via blocklist subscriptions it is only possible to create "suspend" level domain blocks; other severities are not yet supported. Entries of severity "silence" or "limit" etc. on subscribed blocklists will be skipped.
+!!! warning
+    Currently, via blocklist subscriptions it is only possible to create "suspend" level domain blocks; other severities are not yet supported. Entries of severity "silence" or "limit" etc. on subscribed blocklists will be skipped.
 
 ## Priority
 
@@ -14,11 +15,19 @@ When you specify multiple domain permission subscriptions, they will be fetched
 
 Permissions discovered on lists higher up in the priority ranking will override permissions on lists lower down in the priority ranking.
 
-aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
+For example, an instance admin subscribes to two allow lists, "Important List" at priority 255, and "Less Important List" at priority 128. Each of these subscribed lists contain an entry for `good-eggs.example.org`.
+
+The subscription with the higher priority is the one that now creates and manages the domain allow entry for `good-eggs.example.org`.
+
+If the subscription with the higher priority is removed, then the next time all the subscriptions are fetched, "Less Important List" will create (or take ownership of) the domain allow instead.
 
 ## Orphan Permissions
 
-aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
+Domain permissions (blocks or allows) that are not currently managed by a domain permission subscription are considered "orphan" permissions. This includes permissions that an admin created in the settings panel by hand, or which were imported manually via the import/export page.
+
+If you wish, when creating a domain permission subscription, you can set ["adopt orphans"](./settings.md#adopt-orphan-permissions) to true for that subscription. If a domain permission subscription that is set to adopt orphans encounters an orphan permission which is *also present on the list at the subscription's URI*, then it will "adopt" the orphan by setting the orphan's subscription ID to its own ID.
+
+For example, an instance admin manually creates a domain block for the domain `horrid-trolls.example.org`. Later, they create a domain permission subscription for a block list that contains an entry for `horrid-trolls.example.org`, and they set "adopt orphans" to true. When their instance fetches and parses the list, and creates domain permission entries from it, then the orphan domain block for `horrid-trolls.example.org` gets adopted by the domain permission subscription. Now, if the domain permission subscription is removed, and the option to remove all permissions owned by the subscription is checked, then the domain block for `horrid-trolls.example.org` will also be removed.
 
 ## Fun Stuff To Do With Domain Permission Subscriptions
 
@@ -69,10 +78,11 @@ The next time each of `instance-e.example.org`, `instance-f.example.org`, and `i
 
 Say that `instance-g.example.org` in the previous section decides that they agree with most of the collaboratively-curated blocklist, but they actually would like to keep federating with ``fashy-arseholes.example.org`` for some godforsaken reason.
 
-This can be done in one of two ways:
+This can be done in one of three ways:
 
-1. The admin of `instance-g.example.org` creates an explicit domain allow entry for `fashy-arseholes.example.org` on their own instance. Because their instance is running in `blocklist` federation mode, [the explicit allow overrides the domain block entry](./federation_modes.md#in-blocklist-mode), and so the domain remains unblocked.
+1. The admin of `instance-g.example.org` subscribes to the shared blocklist, but they do so with the ["create as drafts"](./settings.md#create-permissions-as-drafts) option set to true. When their instance fetches the blocklist, a draft block is created for `fashy-arseholes.example.org`. The admin of `instance-g` just leaves the permission as a draft, or rejects it, so it never comes into force.
 2. Before the blocklist is re-fetched, the admin of `instance-g.example.org` creates a [domain permission exclude](./settings.md#excludes) entry for ``instance-g.example.org``. The domain ``instance-g.example.org`` then becomes exempt/excluded from automatic permission creation, and so the block for ``instance-g.example.org`` on the shared blocklist does not get created in the database of ``instance-g.example.org`` the next time the list is fetched.
+3. The admin of `instance-g.example.org` creates an explicit domain allow entry for `fashy-arseholes.example.org` on their own instance. Because their instance is running in `blocklist` federation mode, [the explicit allow overrides the domain block entry](./federation_modes.md#in-blocklist-mode), and so the domain remains unblocked.
 
 ### 4. Subscribe directly to another instance's blocklist.