diff --git a/src/wp-includes/comment.php b/src/wp-includes/comment.php
index 0b07d53d6942c..e04cbb43117b2 100644
--- a/src/wp-includes/comment.php
+++ b/src/wp-includes/comment.php
@@ -714,11 +714,6 @@ function wp_allow_comment( $commentdata, $wp_error = false ) {
 
 	$dupe_id = $wpdb->get_var( $dupe );
 
-	// Allow duplicate notes for resolution purposes.
-	if ( isset( $commentdata['comment_type'] ) && 'note' === $commentdata['comment_type'] ) {
-		$dupe_id = false;
-	}
-
 	/**
 	 * Filters the ID, if any, of the duplicate comment found when creating a new comment.
 	 *
diff --git a/src/wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php b/src/wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php
index 4ab82ff7f0e0f..7fe79b57c1b9b 100644
--- a/src/wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php
+++ b/src/wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php
@@ -714,7 +714,11 @@ public function create_item( $request ) {
 			);
 		}
 
-		$prepared_comment['comment_approved'] = wp_allow_comment( $prepared_comment, true );
+		// Don't check for duplicates or flooding for notes.
+		$prepared_comment['comment_approved'] =
+			'note' === $prepared_comment['comment_type'] ?
+			'1' :
+			wp_allow_comment( $prepared_comment, true );
 
 		if ( is_wp_error( $prepared_comment['comment_approved'] ) ) {
 			$error_code    = $prepared_comment['comment_approved']->get_error_code();