I wonder at which point did he quit his job and make this website his sole income. How much money was the site making him at that point? Either way, very risky

I wonder at which point did he quit his job and make this website his sole income. How much money was the site making him at that point? Either way, very risky to quit your job for what is basically a content website with as few as 500 visitors daily average, if even that. It does not seem to work well either, or at least contain very few products, I searched for steinberg ur-12 and got no match. A very popular entry level audio interface.