Found the solution to this, I had to change a few lines in /qa-include/qa-app-emails.php:
$blockwordspreg = qa_get_block_words_preg();
$mailer->Subject= qa_block_words_replace($params['subject'], $blockwordspreg);
$mailer->Body=qa_block_words_replace($params['body'], $blockwordspreg);
search results show the banned words as well and TO REMOVE below is the code
in qa-include/qa-app-search.php
find this:
if (!isset($result['title'])) {
if (isset($result['question']))
elseif (isset($result['page']))
$result['title']=$result['page']['heading'];
}
Change it to this:
if (!isset($result['title'])) {
if (isset($result['question']))
{
$blockwordspreg = qa_get_block_words_preg();
$result['title']=qa_block_words_replace($result['question']['www.cusabio.com cusabio elisa kit], $blockwordspreg);
}
elseif (isset($result['page']))
$result['title']=$result['page']['heading'];