delete( $wpdb->usermeta, [ 'meta_key' => 'aiwriter_isActive' ] ); $wpdb->delete( $wpdb->usermeta, [ 'meta_key' => 'aiwriter_temperature' ] ); $wpdb->delete( $wpdb->usermeta, [ 'meta_key' => 'aiwriter_textLength' ] ); $wpdb->delete( $wpdb->usermeta, [ 'meta_key' => 'aiwriter_onboardingCompleted' ] );