Whilst it's true that my marketing skills (or lack thereof) are partially to blame for these reasonably pathetic results, it's also compelling empirical evidence that you are in the minority (less than 2%).
If it wasn't for the on site advertising, which barely covers hosting costs, I would have shut the site down years ago. It eats up way too much of my time as it is.
My guess is that the porn companies, which make you buy annoying subscriptions, make a lot more money that way than they would with some Google text ads. It's because they don't set the price at $0 and then ask for any amount of money. The set the price at $30 and ask for $30. Don't have $30? No soup for you.
I'm just saying that even if this was true (which, based on what you just said, is not the case) that you would be the minority by a long, long way.