More comment apologies

Despite my earlier attempts to fine-tune things, almost every perfectly legitimate comment posted here within the last week has been marked as spam by our blog software. Since the only "spam" we were getting was made of misfiled real comments, I'm guessing that our CAPTCHA is doing its job just fine, and I've made further adjustments reflecting this to the spam filter.

Sorry, again - all your comments are up now. We'll keep a closer eye on things and make sure this doesn't happen a third time (fooey).