My opinion on the system itself - I was kind of meh. All that build up for some top-secret method of organization that has been refined over 10 years? I just expected more. I don't know exactly what I expected, but I expected there to be more of whatever it turned out to be.
My opinion on the distribution system - It didn't strike me as anything underhanded or insidious. It just seemed like the Old Dude wanted to know who was reading his words. Judging from his picture on his web site, he's an older gentleman & probably has old-fashioned ideas about how he wants to get his ideas out rather than that new-fangled 'throw it up on a web site, fly, and be free" approach. Regardless, he did plainly state that he wasn't going to share or sell anyone's email addresses so I'm sure monetary gain isn't the motivational factor.
Bottom line - I hope there's more to the system & an occasional email isn't going to upset me. I've got worse coming into my mailbox from time to time & to be honest, I'd eventually forget to keep visiting his web site anyway.