Now THAT was Interesting

The experience of producing and posting my first YouTube video was very interesting and had some unforeseen outcomes, as I eluded to in my last post. For the first time in my life I was, what I think most people consider to be, shy, or something like it. After uploading the video and watching it I realised that I was a little self-conscious about the fact that other people, whom I do not know, might see it and hear what I have to say. Now this has never been a problem for me before. I have spoken to groups of people as large as 1000 or more, on a variety of topics, but I have always known something about them; who they were, why they were listening to me, etc. So the idea that their might be viewers just randomly landing upon my video was a little unsettling. I am still not entirely sure why and so I am going to have to give this more thought.
In the interim, the experience has left me wondering if the shyness, or something similar, is what prevents some individuals from posting, and how do prolific posters manage this obstacle. Perhaps they are not shy, but neither I am ... usually.
So I am seeking answers to the question about how the possibility of numerous, anonymous viewers affects YouTube posters and viewers. I have made my third video just about this, because you know what they say about falling off horses and such.

Your comments, thoughts, and answers are warmly welcome.

Cheers,
QG