I just noticed that the comments boxes on the "stand-alone pages'' (those that you get to via the tabs at the top of the page) aren't working. They're reporting error bX-duc6dq. After a quick look on the help pages, it seems that this problem dates from today, and I haven't found any solutions.
So, while posts on the front page are working normally, you won't be able to post comments to the other pages for the moment. If you have something to say but find yourself confronted by bX-duc6dq in the comments box, please post your comment on this post. It should be working since it isn't a stand alone page. Or you can just post in our Heaven and Earth Chat box.