Patheos is making a changeover in its comment system to Disqus. I am, frankly, in over my head on this, so I can only report what Patheos is telling me.
I think the idea is to do the changeover ASAP, and the process will take some 24 hours to integrate all the old comments. During that time there’s a good chance that some of the comments made will be lost in the shuffle.
EDIT: The changeover is done and Disqus is now “absorbing” the past few days of comments. Makes it sound like we’ve picked up a symbiot or something.