If the only thing keeping you in the game is the fact that your potential competition doesn't know you're profitable I think you've got bigger problems to address.
I said no such thing. The reason I said these websites are well-established was exactly to highlight that I'd be much less afraid of any new entrants than he likely should be with his app. Even if new competitors took one percent of the market as a result of such a post, then unless you gained enough in publicity, it was a bad post to make.