I'll answer this later. For now I'll just point out that you aren't addressing my position at all, but other things which I never said. For example, I said that if people believe something, this increases its probability. You respond by asking things like "Currently Christianity has twice as many people... you think this makes it more likely than Islam to be true?" I definitely did not say that the probability of a religion is proportional to the number of people who believe it, just that religions that some people believe are more likely than ones that no one believes.
It has been claimed on this site that the fundamental question of rationality is "What do you believe, and why do you believe it?".
A good question it is, but I claim there is another of equal importance. I ask you, Less Wrong...
What are you doing?
And why are you doing it?