I hadn't noticed it, either. Another Freeper mentioned it somewhere, and it piqued my curiosity.
I looked through Sean_Anthony's posting history, and discovered exactly five replies over the last 24 months. Two of those were directed to himself to correct link errors.
In that same period of time, he's posted five to ten articles a day. I have no issue with the content he posts, but that sort of posting behavior is consistent with blog pimping.
Yes, I agree.