As I said, if I was totally blown away by something then I'd act on it. It would of course have to justify dropping my other projects but I am willing to do that if the idea is good enough.
This practice happens all the time with books that are successful. Other books leech on to the traffic by using the same keywords, but what you'll notice is that the quality of the books is very poor because the author's heart and soul are not invested in the project. Startups that do well, like books, seem to all enjoy the participation of leadership and creativity aligned around a passionate interest in the problem, creative or logical or both.
