Okay, I haven't read all the pages because this topic is so long, but I have a couple of things to say.
One is that I think 'loser' is one of the stupidest insults ever, and is often issued by people who are very ignorant and have serious issues of their own. I mean, I've just read that many stories about incredibly rich and famous people who hit rock bottom, or who were poorer than poor, or who lost everything, but they didn't just sit around and go 'oh I'm a loser!' They recognised their own strengths and put them to work, they took risks that they might not have otherwise have taken, they recognised that life is full of opportunites, etc.
And another thing, whatever happened to valuing people for their differences? Gardner's multiple intelligences has been around for a while now, but I swear it doesn't get talked about enough or used enough and most people just seem to pay lip service to it.
Also, in my opinion, there are different types of extroverts. There are the ones that are truly great at socialising because they make people feel comfortable and then there are ones that think they are great at socialising but they're actually crap at it because they make people feel uncomfortable with their mean spirited nature.
Also, while I admit that I've seen this before and was extremely intrigued by the idea of being able to 'turn on and off extroversion' for curiosities sake, I love being an intro and wouldn't want to change.