With all of these issues now resolved, and Disqus' growing functionality and integration into Social Media, it really makes a lot of sense for WordPress bloggers to install the plugin and integrate the service. I've not tried IntenseDebate, nor have I seen too much news or adoption about it… anyone using it?
The kind folks at Disqus even allowed me to export my blog's content and comments via XML and upload it to their support team. They're now migrating all of the older comments from my blog into their engine. Pretty cool!
So… to the crew at Disqus, I owe you an apology for giving your application a failing grade. Though it was the right thing to do at the time, I'm a fan now! You've got a fantastic product and I love the Twitter integration!