Let me say something first, I don't consider a discussion that doesn't reach a solution to be significant. That said, very few of the discussions that happen on these forums reach any solution (Evolution/Natural Selection/Darwinism vs. ID/Creationism/Spontaneous Generation? Solution? Gay Marriage? Solution? Separation of Church and State? Solution? Functional vs. Hypertrophy? Muscular Chicks? Abortion? I think maybe we have the pullups vs. pulldowns debate settled.).
Now, of all threads, I'm guessing 'The Ass Worship Thread' is the most viewed with some 850,000 views (which is about 10X the amount of any other thread), if we assuming each of those is a single individual, not one individual several times (making it 825,000 if you subtract myself), you've reached approximately 3% of Americans or .003% of the world population.
To think we're some sort of internet forum Woodward and Bernstein or Joseph Goebbels seems rather naive.