wp_deregister_script not working, why?

Question

WordPress

Good afternoon!
Please tell me why wp_deregister_script does not work in this example.
Find the name of the included library in the plugin file

wp_enqueue_script( 'pointer_script', plugins_url( '/media/js/pointer.js', __FILE__ ), array( 'jQuery') );

Next in the function I write the code

add_action( 'wp_enqueue_scripts', 'my_deregister_javascript');
function my_deregister_javascript() {
    wp_deregister_script( 'pointer_script' );
    wp_deregister_script( 'dsq_count_script' );
}

In theory, the pointer_script script should be disabled on all pages.
But he remains connected.
Tell me where the "dog is buried"

Answer 1

So most likely the pointer_script script call does not hang on the wp_enqueue_scripts hook. Look in the plugin file for which hook the connection is implemented in.

Answer 2

Because the discus plugin is extremely handwritten
https://github.com/disqus/disqus-wordpress/blob/ma...

Answer 3

Try an eventafter_setup_theme