> By back filling history...
Yep. That seems plausible. Given means, motive, and opportunity (including a few months of time), could some of the folks here on HN have backfilled history this way? Register an email address one character off of Satoshi's? Edit some old blog posts to insert Bitcoin references? Generate backdated GPG keys? Perhaps enough to satisfy not-very-technical journalists who won't think to compare coding styles and are too worried about losing a scoop to ask folks for second and third opinions?
I'd expect the real Satoshi to have more of a math background, not "ecommerce law" and "digital forensics." I'd also expect him to be more similar in writing style and be more ideologically in sync with Bitcoin in his public actions. Plus I'm not a C# coder but this looks pretty basic: https://digital-forensics.sans.org/blog/2009/04/24/code-skil...
The evidence the journalists published is more convincing if you want it to be convincing. My guess is that they did.