As far as I understand, the author hopes that the people who make other sites would link to his site in their noscript tags.
I would never, because his site is as far from the right approach as it can be. See:
I would never, because his site is as far from the right approach as it can be. See:
The real reason why it's not so useful is because those who turn off Javascript tend to be power users who know how to turn it back on...