diff --git a/.github/codecov.yml b/.github/codecov.yml
index 5532c49618..9d6413a106 100644
--- a/.github/codecov.yml
+++ b/.github/codecov.yml
@@ -1,3 +1,4 @@
+comment: false # Do not leave PR comments
 coverage:
   status:
     project:
@@ -8,6 +9,3 @@ coverage:
       default:
         # Github status check is not blocking
         informational: true
-comment:
-  # Only write a comment in PR if there are changes
-  require_changes: true
diff --git a/app/javascript/core/admin.ts b/app/javascript/core/admin.ts
index 3b3fe76488..0642affef0 100644
--- a/app/javascript/core/admin.ts
+++ b/app/javascript/core/admin.ts
@@ -150,7 +150,7 @@ Rails.delegate(
   },
 );
 
-const onDomainBlockSeverityChange = (target: HTMLInputElement) => {
+const onDomainBlockSeverityChange = (target: HTMLSelectElement) => {
   const rejectMediaDiv = document.querySelector(
     '.input.with_label.domain_block_reject_media',
   );
@@ -170,7 +170,7 @@ const onDomainBlockSeverityChange = (target: HTMLInputElement) => {
 };
 
 Rails.delegate(document, '#domain_block_severity', 'change', ({ target }) => {
-  if (target instanceof HTMLInputElement) onDomainBlockSeverityChange(target);
+  if (target instanceof HTMLSelectElement) onDomainBlockSeverityChange(target);
 });
 
 const onEnableBootstrapTimelineAccountsChange = (target: HTMLInputElement) => {
@@ -207,7 +207,7 @@ Rails.delegate(
   },
 );
 
-const onChangeRegistrationMode = (target: HTMLInputElement) => {
+const onChangeRegistrationMode = (target: HTMLSelectElement) => {
   const enabled = target.value === 'approved';
 
   document
@@ -257,16 +257,16 @@ Rails.delegate(
   '#form_admin_settings_registrations_mode',
   'change',
   ({ target }) => {
-    if (target instanceof HTMLInputElement) onChangeRegistrationMode(target);
+    if (target instanceof HTMLSelectElement) onChangeRegistrationMode(target);
   },
 );
 
 ready(() => {
-  const domainBlockSeverityInput = document.querySelector<HTMLInputElement>(
-    'input#domain_block_severity',
+  const domainBlockSeveritySelect = document.querySelector<HTMLSelectElement>(
+    'select#domain_block_severity',
   );
-  if (domainBlockSeverityInput)
-    onDomainBlockSeverityChange(domainBlockSeverityInput);
+  if (domainBlockSeveritySelect)
+    onDomainBlockSeverityChange(domainBlockSeveritySelect);
 
   const enableBootstrapTimelineAccounts =
     document.querySelector<HTMLInputElement>(
@@ -275,8 +275,8 @@ ready(() => {
   if (enableBootstrapTimelineAccounts)
     onEnableBootstrapTimelineAccountsChange(enableBootstrapTimelineAccounts);
 
-  const registrationMode = document.querySelector<HTMLInputElement>(
-    'input#form_admin_settings_registrations_mode',
+  const registrationMode = document.querySelector<HTMLSelectElement>(
+    'select#form_admin_settings_registrations_mode',
   );
   if (registrationMode) onChangeRegistrationMode(registrationMode);
 
diff --git a/app/models/user_role.rb b/app/models/user_role.rb
index 9115d91c24..23cc28b9b7 100644
--- a/app/models/user_role.rb
+++ b/app/models/user_role.rb
@@ -39,6 +39,7 @@ class UserRole < ApplicationRecord
   }.freeze
 
   EVERYONE_ROLE_ID = -99
+  NOBODY_POSITION = -1
 
   module Flags
     NONE = 0
@@ -104,7 +105,7 @@ class UserRole < ApplicationRecord
   has_many :users, inverse_of: :role, foreign_key: 'role_id', dependent: :nullify
 
   def self.nobody
-    @nobody ||= UserRole.new(permissions: Flags::NONE, position: -1)
+    @nobody ||= UserRole.new(permissions: Flags::NONE, position: NOBODY_POSITION)
   end
 
   def self.everyone
@@ -173,7 +174,7 @@ class UserRole < ApplicationRecord
   end
 
   def set_position
-    self.position = -1 if everyone?
+    self.position = NOBODY_POSITION if everyone?
   end
 
   def validate_own_role_edition
diff --git a/spec/models/user_role_spec.rb b/spec/models/user_role_spec.rb
index 9dd04a8172..96d12263ae 100644
--- a/spec/models/user_role_spec.rb
+++ b/spec/models/user_role_spec.rb
@@ -139,7 +139,7 @@ RSpec.describe UserRole do
     end
 
     it 'has negative position' do
-      expect(subject.position).to eq(-1)
+      expect(subject.position).to eq(described_class::NOBODY_POSITION)
     end
   end
 
@@ -159,7 +159,7 @@ RSpec.describe UserRole do
     end
 
     it 'has negative position' do
-      expect(subject.position).to eq(-1)
+      expect(subject.position).to eq(described_class::NOBODY_POSITION)
     end
   end