Maybe it's another David Plotz, we thought! Not so: on the day of publication of The End of Men by Hanna Rosin (pictured), as the pair were undergoing a jokey publicity tour, Mr. Plotz wrote another Amazon review. "I'm Hanna Rosin's husband, so I'm obviously biased," he wrote, "but I have also lived with this book and this subject for two years, and I can tell you confidently that Hanna has written an absolutely gripping and thought-provoking book about why the world has changed so fast." Six of fourteen Amazon readers found the review helpful.

Four out of Mr. Plotz's five Amazon user reviews grant the subject the perfect five stars (including a rave review for The Bush Tragedy, written by Jacob Weisberg, the editor-in-chief of Slate Group and a man Mr. Plotz calls "a colleague and friend"). The one negative review was for a Black & Decker toaster oven. "The timer did not function, causing me to nearly set fire to my kitchen when the first piece of toast I put in incinerated," Mr. Plotz wrote. "Also, it came without an instruction manual."