That said, it does seem to be the page. That page shows '.discus.com' in the Noscript permissions. Clicking another page for example I clicked on »www.telegraph.co.uk/news/uknews/···elf.html
Now 'discus.com' appears on the NoScript permissions. Allow that, go back to »www.telegraph.co.uk/news/uknews/···tan.html, reload and now it's allowed. You could also load that other page as a separate tab and allow 'discus.com' both pages with reload.
Just in case anyone is wondering 'discus.com' is needed to read comments.
Living in Paradise!!