Addendum

I want to call my readers' attention to Eric MacDonald’s blog post of earlier today, and in particular to the combox discussion it has generated.  As you will see from the latter (scroll down to my exchange with him), MacDonald has graciously and honorably offered to bury the hatchet, and I very happily accept his offer.  As you will also see, he and I and some of his readers have been having a fruitful discussion.