This is a nice thread because it highlights the passion side of pizza making, not just the mechanical, robotic aspects of pizza making.
When I was considering joining the forum, I indicated in an early posting that I discovered that most people were more interested in eating pizza rather than making it or understanding it, and that I tended to do it in reverse--understanding pizza, making it, and then eating it. I don't know that I would have joined the forum were it not for the fact that Steve was behind it. I had read about his work with multiple pizza stones and had concluded that he had to be an extremely passionate and dedicated pizza "nut" to go to the extremes he did to try to perfect pizza in the home. And to create a forum no less to share his passions with others of like mind. I voraciously read as many of the postings at the forum as I could and concluded that there was no other place where people could assemble with the goal of making the perfect pizza.
Like many of you, I had searched for good pizza recipes over the Internet and elsewhere but usually came away disappointed. I had done a fair amount of research on the subject of pizza, and concluded that most recipes evolved as much by accident as by design. Errors and poor science probably creeped into the recipes over time and were repeated time and time again over the years. To this day, I deem most pizza recipes found over the Internet, and many in pizza cookbooks, to be deficient or suspect in one way or another, as Pierre has correctly pointed out. And the results that you can hope to achieve are often misrepresented or greatly exaggerated. Under these conditions, you have to take matters into your own hands. You either learn the right ways or you are relegated to a pizza world of mediocrity. Or you move onto another hobby.
I also believe that you have to strive for consistent, reproducible results. Otherwise, each pizza you make becomes a "mystery" pizza. I don't need consistency like professionals do, but I still want to know what to expect when I make my pizzas. That's why I believe it is important to have access to the knowledge and experiences of others, such as at this forum, whose sole objective is to make the best pizzas possible and who are unrelenting in achieving that objective. In the final analysis, it's about passion and, like passion in many other facets of our lives, it ultimately pays off.