The futility of advertising in my comments section

You may have noticed that people or computers have been using the comments sections of this sketch blog as spots for advertisement. I do appreciate the additional traffic that this could lead to. I imagine that shoppers searching for fur-lined moon boots or the fashions favored by Jon Gosselin of Jon & Kate Plus Eight fame might fortuitously stumble across my website. I imagine them exclaiming, "What's this now? You mean I can get high-quality scientific graphics from an illustrator with a dozen years of research experience? Well for goodness sake, get me to the contact page at once!" However, to be fair, I feel obligated to admit that my readership is actually quite small. To illustrate this, I made the following 3D infographic. This should make it clear that it isn't really worth the time it takes to place these ads here.