Not that having a pro card validates someone's knowledge (at least in the IFBB anyway -lol), but I've always respected john for traits separate from his physique.
The guy absolutely loves this stuff. This is something that I can 100% empathize with. Juggling his love of the sport, competing, constantly expanding his own knowlege base... Especially when it had absolutely nothing to do with his day job for years (he only was able to make what he deemed income enough to support his family from coaching in the last couples Of years I believe), ain't easy!
He also isn't one of those guys to writes the same crap everyone else does just so they can have their zillions of social media followers and hanger-ons drool over the latest daily inspiration. He says something when he Has something to say, and it's always evident that it's something he has considered before opening his mouth.
More than anything though, I know what it's like to work your tail off for something, trying to keep your "real life" in proper perspective as you row more and more focused and then come oh so close, but not quite. So when you finally do achieve that long held goal, thy narrow minded obsession that runs deep within all competitors, it's got to be one hell of a feeling indeed.