That's what he's reacting to. He's found that after a certain point tinkering with your productivity system is in itself a form of disguised procrastination (as is reading the Internet, PS).

Also, once his "productivity" blog became so popular, others who smelled easy money started their own blogs that seem to capitalize on keeping people caught up in maya* to draw traffic rather than actually helping them solve their own problems, productivity or otherwise.

* See: http://en.wikipedia.org/wiki/Maya_%28illusion%29#Concepts_an...

Hehe, indeed. I think he just woke up one day and got disgusted by the irony of people putting off real work to read his blog.