It's not just you. Commenting is glitchy again, and it's taking about a half hour for comments to show up on the page once they've been left.
I've let Disqus know, and hopefully it will be resolved soon. My apologies.
UPDATE: Now some comments which at one point were appearing on the page have disappeared. I don't know if this is because they're working on it, since they haven't responded to me, or if it's just a new problem altogether. I've let them know about that issue, too.
UPDATE 2: Things seem to be working better now. I still haven't heard from anyone at Disqus, but as I do not presume that these things happen via magic and pixie dust, I'm going to go ahead and say thank you to whomever (probably Ryan!) at Disqus who fixed it! Thank you!