He seems to be more on the shady/darkhat side of things. I think YC readers are more interested in the "create something cool/valuable/fun and love what you do" method.
Personally, I would rather be building things and creating value, rather than playing cat-and-mouse with search engines and ad networks.
He definately does a lot of very commercial stuff certainly but I think that's useful to know about if you're building something cool/ valuable/ fun if you want to monetise or promote it.
Also he built Auction Ads recently which is a real valuable product.
I love these online marketing sites - you really learn a lot about SEO, monetising users and so on. It's a great change from reading techcrunch reviews and that kind of thing.
Personally, I would rather be building things and creating value, rather than playing cat-and-mouse with search engines and ad networks.
Maybe I am misinterpreting him though.