"Discourse Username" in WP - what does it do?

[simon]

@omarfilip

Is there a better way to hide if than via CSS?

Yes, you can add something like this to your theme’s functions.php file:

add_filter( 'user_contactmethods', 'my_namespace_remove_discourse_user' );
function my_namespace_remove_discourse_user( $contact_methods ) {
    unset( $contact_methods['discourse_username'] );

    return $contact_methods;
}