I'm frequently asked: "Are there places you love that you don't tell anyone about?"
The answer is, to me, simple. I've seen countless great places close from lack of interest. But only a tiny handful close or decline from over popularity.
That's all you need to know. It's never EVER a bad thing to spotlight the good guys.
For one thing, spotlighting the good guys encourages other good guys to go into the biz, because they see that delciousness is a successful business model. Do we really want the notion of cooking from heart/soul to be obscure and esoteric - something that makes businessmen wrinkle their noses and shrug? I want BURGER KING thinking there's money to be made via genuine deliciousness, for crissakes!
Also, people who do great stuff deserve to make a good living. I don't like to see my heroes (e.g. the Sainted Arepa Lady) be poor. Keeping them poor disincentivizes doing your thing with heart and soul, and encourages mindless cogs. And we need more of the former and less of the latter.