I didn't tried this but you made me think this on it . I think it is not easy for anyone because in such experiments you need some experience and exposer . Darren Rowse is a well know blogger and whatever these guys do is always noticed by others . They have so many readers and followers which helps them to drive lots of traffic and this is the best key for them .
If you are a new webmaster or upcoming webmaster then you have to struggle to promote such things very harder .