If Paco Ahlgren is Satoshi Nakamoto (and personally I think he is), then I don't think he really cares if people get close to the truth. First of all, he probably wrote the article about bitcoin, and then when people started saying he was Satoshi, he probably just pulled it to be safe. I guess he didn't think people would have saved copies.
But think about it . . . if you've read Ahlgren's book, you know he's a master chess player. If he's Satoshi, then he planned out every move well in advance. Just because a couple of us geeks on a forum think we've figured out a connection probably isn't going to affect him too much. In reality, he's probably having a good laugh about it!
If there is a connection, I'm pretty sure that he's hidden his assets good enough that nobody's going to be able to find any evidence linking him directly. So he's probably just sitting back and enjoying the show.