BTW, for any of you who criticize him (and I often find myself in that group), his site has an Alexa ranking in the top 5000 for US and top 8000 globally.
Nobody ever criticized him for not being able to attract traffic to his site.
You (conveniently) took part of my post out of context. If you care to comment, please do so about the point I made (I'll make it easy for you - they're the two sentences that follow the one you decided to quote, especially the first one), not the supporting data.
Then consider how other photo sites, like this one, are totally monetized and use affiliate links as well.