Commenting change

As the five of you who read this regularly might have noticed - comments have shifted over to Disqus. After my 'Reply' button hack evaporated mysteriously, I thought I'd shift over to something a bit more detailed and useful. So, here we are. So given I can see comments and reply to them a bit better now, feel free to say hi if you're a long-time lurker. I won't bite. :)