diff --git a/includes/class-activity-dispatcher.php b/includes/class-activity-dispatcher.php
index 98904bc..f37e709 100644
--- a/includes/class-activity-dispatcher.php
+++ b/includes/class-activity-dispatcher.php
@@ -39,7 +39,7 @@ class Activity_Dispatcher {
 	 * @return void
 	 */
 	public static function send_activity_or_announce( WP_Post $wp_post, $type ) {
-		if ( is_user_disabled( Users::BLOG_USER_ID ) ) {
+		if ( is_user_type_disabled( 'blog' ) ) {
 			return;
 		}
 
diff --git a/includes/functions.php b/includes/functions.php
index ee67e16..80ed03e 100644
--- a/includes/functions.php
+++ b/includes/functions.php
@@ -401,7 +401,7 @@ function is_single_user() {
 		$return = true;
 	}
 
-	return apply_filters( 'activitypub_is_single_user', $return );
+	return $return;
 }
 
 if ( ! function_exists( 'get_self_link' ) ) {
diff --git a/tests/test-class-activitypub-activity-dispatcher.php b/tests/test-class-activitypub-activity-dispatcher.php
index 54ebda0..b1eb3a0 100644
--- a/tests/test-class-activitypub-activity-dispatcher.php
+++ b/tests/test-class-activitypub-activity-dispatcher.php
@@ -95,6 +95,13 @@ class Test_Activitypub_Activity_Dispatcher extends ActivityPub_TestCase_Cache_HT
 	}
 
 	public function test_dispatch_announce() {
+		add_filter(
+			'activitypub_is_user_type_disabled',
+			function( $value ) {
+				return false;
+			}
+		);
+
 		$followers = array( 'https://example.com/author/jon' );
 
 		foreach ( $followers as $follower ) {
@@ -131,12 +138,20 @@ class Test_Activitypub_Activity_Dispatcher extends ActivityPub_TestCase_Cache_HT
 		$followers = array( 'https://example.com/author/jon' );
 
 		add_filter(
-			'activitypub_is_single_user',
-			function( $return ) {
-				return true;
-			}
+			'activitypub_is_user_type_disabled',
+			function( $value, $type ) {
+				if ( 'blog' === $type ) {
+					return false;
+				} else {
+					return true;
+				}
+			},
+			10,
+			2
 		);
 
+		$this->assertTrue( \Activitypub\is_single_user() );
+
 		foreach ( $followers as $follower ) {
 			\Activitypub\Collection\Followers::add_follower( \Activitypub\Collection\Users::BLOG_USER_ID, $follower );
 		}