Garner lists errors and inconsistencies from the book, pointedly addresses the missing hyphen in the subtitle's "Zero Tolerance Approach," and quotes James J. Kilpatrick, Barbara Wallraff, Patricia T. O'Conner and yours truly on our quarrels with the book. He even wonders why people love the title so much, before conceding that even his 12-year-old daughter and her friends are in love with the panda joke. Garner continues:
So I won't criticize the main title of the book. But the book itself is a different matter altogether. When people have asked me what I think of it, I've usually responded by summing up its entire message in this way: "Don't know much about punctuation, but wouldn't it be nice if people could sort out their apostrophes?"The full article is available on LexisNexis.
There lies the real answer to the question: Why do the experts uniformly disparage a punctuation book that appeals so much to the popular mind? The thing is that many people think they're sticklers when they're not. And Lynne Truss happens to be one of them.