README: Update about why lists are not included

README.md

@@ -6,6 +6,17 @@ This is imported to our VPN servers frequently.
 
 We aim to update these lists on a weekly basis. You can view the latest update by selecting the commits to this repository.
 
+# Why is list "X" not included?
+
+If you find a block list that is included it is because we have gone through these validation steps:
+- The blocklist is an amalgamation of other blocklists.
+- The blocklist no longer maintained.
+- The blocklistd blocks things we do not believe should be blocked (like our own domains).
+
+We periodically make exceptions to the included URLs for the following reasons:
+- The upstream lists are broken and include malformed URLs causing the generation to fail.
+- The upstream lists block our domains.
+
 # Using Encrypted DNS on Apple Devices
 
 For convenience we have Apple configuration profiles (.mobileconfig) signed for simpler "one-click installation", or MDM management.

templates/README.md.j2

@@ -6,6 +6,17 @@ This is imported to our VPN servers frequently.
 
 We aim to update these lists on a weekly basis. You can view the latest update by selecting the commits to this repository.
 
+# Why is list "X" not included?
+
+If you find a block list that is included it is because we have gone through these validation steps:
+- The blocklist is an amalgamation of other blocklists.
+- The blocklist no longer maintained.
+- The blocklistd blocks things we do not believe should be blocked (like our own domains).
+
+We periodically make exceptions to the included URLs for the following reasons:
+- The upstream lists are broken and include malformed URLs causing the generation to fail.
+- The upstream lists block our domains.
+
 # Using Encrypted DNS on Apple Devices
 
 For convenience we have Apple configuration profiles (.mobileconfig) signed for simpler "one-click installation", or MDM management.