Well, there was some interesting/useful information in this book, but overall the humor just fell flat and was really annoying. Either the author thought she is much funnier than she is, or she was trying too hard, or maybe she's just not funny. In any event, it didn't work for me.
So grammar snobs are meanies, but to fight them back non-grammar-snobberians (I don't know what you would call them) should learn grammar so they can be equally obnoxious right back at them? Whatevs.