Answer found 10 months later:
Just paid a visit to: https://tscadfx.com/alt-title-tags-gravatars-wordpress/
Found this code:
function replace_content($text)
{
$alt = get_the_author_meta( 'display_name' );
$text = str_replace('alt=\'\'', 'alt=\'Avatar for '.$alt.'\' title=\'Gravatar for '.$alt.'\'',$text);
return $text;
}
add_filter('get_avatar','replace_content');
Changed some of it to suit the b4usa website:
function replace_content($text)
{
$alt = get_the_author_meta();
$text = str_replace('alt=\'\'', 'alt=\'Avatar for '.$alt.'\' title=\'USA Product or Service Commenter Avatar '.$alt.'\'',$text);
return $text;
}
add_filter('get_avatar','replace_content');
and added it to the functions.php file. and.. WaLa!!
Thanks Todd Robertti.