diff --git a/lib/rest-api.php b/lib/rest-api.php
index 5cdc258c08d5a..aa74c373f8b5b 100644
--- a/lib/rest-api.php
+++ b/lib/rest-api.php
@@ -185,79 +185,42 @@ function gutenberg_auto_draft_get_sample_permalink( $permalink, $id, $title, $na
 add_filter( 'get_sample_permalink', 'gutenberg_auto_draft_get_sample_permalink', 10, 5 );
 
 /**
- * Expose the custom_logo theme-mod in the settings REST API.
- */
-register_setting(
-	'general',
-	'theme_mods_' . get_option( 'stylesheet' ),
-	array(
-		'type'         => 'object',
-		'show_in_rest' => array(
-			'name'   => 'theme_mods_' . get_option( 'stylesheet' ),
-			'schema' => array(
-				'type'       => 'object',
-				'properties' => array(
-					'custom_logo' => array( 'type' => 'integer' ),
-				),
-			),
-		),
-	)
-);
-
-/**
- * Expose the "stylesheet" setting in the REST API.
- */
-register_setting(
-	'general',
-	'stylesheet',
-	array(
-		'type'         => 'string',
-		'show_in_rest' => true,
-	)
-);
-
-/**
- * Filters the value of a setting recognized by the REST API.
+ * Filters WP_User_Query arguments when querying users via the REST API.
  *
- * Hijacks the value for custom_logo theme-mod.
+ * Allow using the has_published_post argument.
  *
- * @param mixed  $result Value to use for the requested setting. Can be a scalar
- *                       matching the registered schema for the setting, or null to
- *                       follow the default get_option() behavior.
- * @param string $name   Setting name (as shown in REST API responses).
+ * @param array           $prepared_args Array of arguments for WP_User_Query.
+ * @param WP_REST_Request $request       The REST API request.
  *
- * @return null|array
+ * @return array Returns modified $prepared_args.
  */
-function gutenberg_rest_pre_get_setting_filter_custom_logo( $result, $name ) {
-	if ( 'theme_mods_' . get_option( 'stylesheet' ) === $name ) {
-		return array(
-			'custom_logo' => get_theme_mod( 'custom_logo' ),
-		);
+function gutenberg_rest_user_query_has_published_posts( $prepared_args, $request ) {
+	if ( ! empty( $request['has_published_posts'] ) ) {
+		$prepared_args['has_published_posts'] = ( true === $request['has_published_posts'] )
+			? get_post_types( array( 'show_in_rest' => true ), 'names' )
+			: (array) $request['has_published_posts'];
 	}
+	return $prepared_args;
 }
-add_filter( 'rest_pre_get_setting', 'gutenberg_rest_pre_get_setting_filter_custom_logo', 10, 2 );
+add_filter( 'rest_user_query', 'gutenberg_rest_user_query_has_published_posts', 10, 2 );
+
 
 /**
- * Filters whether to preempt a setting value update via the REST API.
- *
- * Hijacks the saving method for theme-mods.
+ * Filters REST API collection parameters for the users controller.
  *
- * @param bool   $result Whether to override the default behavior for updating the
- *                       value of a setting.
- * @param string $name   Setting name (as shown in REST API responses).
- * @param mixed  $value  Updated setting value.
+ * @param array $query_params JSON Schema-formatted collection parameters.
  *
- * @return bool
+ * @return array Returns the $query_params with "has_published_posts".
  */
-function gutenberg_rest_pre_set_setting_filter_theme_mods( $result, $name, $value ) {
-	$theme_mods_setting_name = 'theme_mods_' . get_option( 'stylesheet' );
-	if ( $theme_mods_setting_name === $name ) {
-		$value = (array) $value;
-		$value = wp_parse_args( $value, get_option( $theme_mods_setting_name, array() ) );
-
-		update_option( $theme_mods_setting_name, $value );
-		return true;
-	}
+function gutenberg_rest_user_collection_params_has_published_posts( $query_params ) {
+	$query_params['has_published_posts'] = array(
+		'description' => __( 'Limit result set to users who have published posts.', 'gutenberg' ),
+		'type'        => array( 'boolean', 'array' ),
+		'items'       => array(
+			'type' => 'string',
+			'enum' => get_post_types( array( 'show_in_rest' => true ), 'names' ),
+		),
+	);
+	return $query_params;
 }
-
-add_filter( 'rest_pre_update_setting', 'gutenberg_rest_pre_set_setting_filter_theme_mods', 10, 3 );
+add_filter( 'rest_user_collection_params', 'gutenberg_rest_user_collection_params_has_published_posts' );