... that some readers are attempting to post comments, but experiencing some sort of glitch with the commenting system, in at least one case having to do with the "word verification" anti-spam device. I'm not sure what's going on - I've successfully posted a nonsense comment myself (logged out of Blogger, to approximate the experience of a reader). I'm going to try and dig a bit more, and see what I can do to fix it. I'm reluctant to disable the word verification, but I also want readers to be able to comment!
Update 2008.09.14 - There's a known issue for Blogger in Beta that sounds like what's been described to me, though it's supposed to have been fixed as of 2006. I've posted a note in Blogger's support forum. Until I have an answer I'm switching comment submission back to the old Blogger system, where you'll be taken to a separate page to post a comment. It's clunky, but it used to work.