Ooh, is 'Email #100' referring to that mysterious 2nd ever forum account that nowadays "does not exist"?
I don't think so... Sounds strange for a forum account to have "permissions". Usually, OS users have that, and since it's talking about ssh and Linux, chances are it's a user in the server that was hosting bitcoin.org. Then, in email #103, you can see Satoshi used that to install a file manager:
Thanks, that worked, I got File Manager installed with SSH. I also uploaded a few themes into Drupal. I haven't thoroughly gone through all the available themes yet.
Reading new Satoshi messages gives me chills. I thought every important email discussion was disclosed already.
So basically Sirius was a CS student back then and Satoshi, seeing that Sirius was talented, decided to let him do the website and the FAQ?
As I perceive it, Satoshi saw a young man who was thirsty for programming. He must have respected how Sirius recognized Bitcoin from the very beginning. I remember that most people were a little doubtful at first, looking at the mailing lists, forums.
So, as it appears out, Sirius was registered under the pseudonym "Trickstern" in an old, anarchist forum called "anti-state.com". Oh boy, conspiracy theories on Satoshi's identity will continue.