The Tipping Point on YouTube

I am going to suggest that there is a tipping point at which some lurkers will become web 2.0 posters. Think someone who watches YouTube videos and then decides to post one themselves. I think that this transition comes as an internal want (e.g. the expression of a thought, a feeling, a creative art, etc). becomes more compelling than any de-motivational considerations (e.g. shyness, etc.), which prevent someone from making this leap. I think the conditions and the threshold are specific to the individual, but I wonder if there is a common general set of factors such as the want to express oneself publically ... very publically in this case and, on the other side of the scale, the fear of having others (and unknown others at that) be witness to this expression.

So what are our triggers?
What is it that prompts someone to go from lurker to poster?
What compells someone to spread news to the world everyday as sxephil does? or script, produce, edit, and star in elaborate stories like Venetian Princess? Or attempt to change the world, one Nerd at a time, by vlogging with his brother?

This is the essence of my second video. I hope that I garner some response, lest I be forced to use other data collection methods :)

I invite you to offer me your opinions <- That just seems weird, as I think I am the only one reading this :P

Anyway,

QG