I'm always a bit shocked at how incestuous this community can be. Many articles that pop up are simply responses to other articles, rarely containing enough content to justify being anything other than a comment. In this case, I saw the content of this article condensed into a single, well written, concise comments on the article about that guy making $8k off of some Mac OS X app. Worse, that was an article I found a bit obnoxious in and of itself (it felt hard to justify that as anything other than boasting when I'm fairly certain everyone understands a well promoted sale can do some good.)
Closing off that rant and moving on to an actual comment, I don't know that I agree with the 'advice' here. If you have to hide the fact that your idea is making money out of fear of copy-cats stealing up your business, then it was certainly not a sustainable model to begin with. It's a good way to make a quick buck and, in that context, this is likely good advice, I just wouldn't count on some project that depended on it to last any meaningful amount of time.
Closing off that rant and moving on to an actual comment, I don't know that I agree with the 'advice' here. If you have to hide the fact that your idea is making money out of fear of copy-cats stealing up your business, then it was certainly not a sustainable model to begin with. It's a good way to make a quick buck and, in that context, this is likely good advice, I just wouldn't count on some project that depended on it to last any meaningful amount of time.