We get hundreds of spam comments a day, so we’ve installed a bunch of spam filters on the blog. One of them started going crazy this evening, and flagging everything as spam for about an hour! Mrs. Penguin pointed it out to us in chat, and we deactivated the crazy spam filter for now.
Everything should be back to normal, and comments should be going through again. Let us know if you’re seeing any problems! If your comment doesn’t go through, please try us here.