As uncomfortable as the thought is, I think I'd give this a shot. Regardless of the reliability of these claims, I respect people who question what's "normal" in society.
People might try this out in the winter, and swear by it in online forums until summer comes, or a stressful interview comes up (stress sweat stinks more than normal), or until a coworker with super sense of smell says something.
It may work great, but healthy skepticism is just as important as a willingness to buck convention.
To clarify, I am not saying it doesn't work, only that a few claims in a forum aren't "proof." I may even give it a try.
Anyway, worked for me. I'm also a fairly skinny guy with a low body fat percentage, not sure if that made any difference.
edit: It's also not a "willingness to buck convention", because you can ultimately just start using soap again. There's really nothing to be lost by trying it, imho.