The problem is that the values are loaded using AJAX and during the AJAX request $profileuser probably does not contain any value.
The 3rd argument that’s passed to your function should have the use ID, but I don’t really know what’s in the argument.
you can find this out. Turn on error logging in WP by adding this to wp-config.php
define('WP_DEBUG', true );
define('WP_DEBUG_DISPLAY', true);
define('WP_DEBUG_LOG', true);
then in your filter do this
ob_start();
print_r($post);
error_log(ob_get_clean());
Go to your user profile page, then you can look in the error log ‘/wp-contnet/error.log’ to see what get written to the file.
