The thesis is that the source of the 'stink' is Ammonia and the bacteria are eating it and turning it into nitrides. The question is of course how quickly they can do that.
It's an odd theory. Humans have very little free ammonia in their bodies. There are enzymes that quickly catabolize it to urea.
Second, nitrides seems like an odd product of ammonia metabolism. I've only ever heard of metal nitrides, nothing organic.
It's pretty well understood that bacteria on the skin metabolize the fatty acids in our sweat to short chain aliphatic acids (propionic acid, butyric acid, etc). If you've ever smelled those chemicals you'd see the resemblance.
The stink is often byproducts of anaerobic metabolism. Diet and stress greatly affects it. If you keep lipolysis and protein catabolism down, you really don't smell.
I've found it very noticeable how much I stink after stress, like public speaking. It's because cortisol and adrenaline ramp up inefficient anaerobic metabolism.
Its a pretty interesting theory.