Many applications on Facebook are there only for the reason of spamming you with no sense of added value other than giving the user more value if you accept the invitation. Others are simply the company's website pushed in fastly on your profile.
When I get these applications, they give me a laughter for some minutes and then the fun's over. If, like one of the groups on Facebook is predicting, applications will be the death of Facebook, it'll exceed from having these kinds of applications spam away to the users till people are fed up.
Therefore, I really hope that applications like Reb Me can take more market ground on the community