It won’t let me post comments on your blog anymore. This makes me sad. I did want to respond to your correspondence chess post:
As far as I know, in the pre-computer days, researching books as an opening aid was completely legal. One could argue that computer-aided openings are merely an extension.
On the other hand, the difference between book aid and computer aid is something like a runner using nutrition and fitness to run faster versus strapping on a rocket pack. At some point, it’s not about the guy who runs the fastest, it’s how advanced the rocket pack is.