It's not that A.J. Jacobs should have to hold himself to that standard of the subject he's reporting on, but that he's purporting-to-do-so-but-not-really, which is irritating. For some reason his (and your) version of "radical honesty" becomes a game where you just craft a succession of start-and-stop sentences with cute, largely forgivable admissions of self-interest. I'm not against humor but I'm suspicious that for some it functions as a coping mechanism that substitutes for sincere engagement with an uncomfortable idea.
I did not discover this article by browsing Esquire. It was part of Luke Muelhauser's list of favorite articles.