I'm trying out the new 2012 Disqus, which should update comments in realtime without making you guys reload the page. But it's different in a lot of ways - it sorts comments by "Best" now instead of "Newest" unless you change it yourself (click the little arrow next to Discussion to change this). You can vote posts up and down, which ties into the "Best" sorting. You can follow users now, too.
We can go back to the old system - so please give us feedback on whether the benefits outweigh the downsides.
The old system is back again. Thank you for your feedback, everyone!