As somebody who would be classed as a "wantrepreneur", I really hate the term and its negative slant. For a community of people who celebrate the pathological need to "do it for yourself" we tend to look down on people who are learning how it is done. All the books in the world don't give you the character to succeed and the process of self-discovery and learning about yourself is hard. IMVHO, classification of our disorder on a scale of current success isn't productive. It seems to me to be a byproduct of the culture pushed by commentators who are making a living off being critical in the startup world rather than a term coming from those giving it a go.
Wantrapreneur is a term that has started to describe people who are n00bs for entrepreneurship. This is where I see a problem. Instead of motivating people to graduate to entrepreneurship, we are mocking them to give it up. Not nice.