For a couple of hours, commenters can't get through. I tried to post one myself, and the break seems to be that they aren't getting to my Moderator's mailbox. I am not going to turn off moderation for now, I will post them to the blog manually.
I opened a ticket. In the meantime, just email them to me at firstname.lastname@example.org and I will post them some way or t'other.
Thank you for your patience.