Okay, I have now switched things over to the Blogger comment system, so your ability to comment on posts here should be back for good. Unfortunately, for reasons known only to Blogger, it looks like the oldest posts — May 9, 2004, and before — don’t have comment-ability.
I am now going to attempt to put the comments from the old system into every post, which is going to be ridiculously tedious. And I do it all for you.