that shortcode should work – unless there is another plugin or function interfering with it.
However, that shortcode would actually return the Page Title and not the Site Title.
If you’re happy to carry on trying then remove what your currently have in your functions.php. And add this:
add_shortcode( 'site_title','db_site_title_shortcode' );
function db_site_title_shortcode()
{
return get_bloginfo( 'name' );
}Then on a draft page can you add this to the content:
Socius Ingredients
If the site title displays correctly then we know that the function is working.
If so try adding the shortcode to the copyright info… as a test – remove all other content from the copyright first.
Does it then display?
Regarding screenshot/video uploads – as much as we would like to add an upload directory to the GP forum it would require a huge amount of extra database storage and security layers to manage that.