Can we extract from this that Theymos is close to satoshi since he took over charge from satoshi. He is previously in contact with satoshi for sure.
Theymos was active in the forum back in the day and from the oldest too I think. It's not like he joined the forum and made an admin. Forum was created in 2009 while theymos become an admin in 2012. That doesn’t ensure anything like you are expecting.
The story of how I became head admin is actually pretty boring. Moderators were needed, so I was made a global moderator. Then admins were needed, so I was made an admin. Then over time the other admins slowly lost interest and resigned until I was the only one left. I guess most of the people who were around here to see this have more-or-less left the community now. That's a bit sad.
It's not entirely clear, but for simplicity I usually say that I became head admin at the beginning of 2011, a little over a year after the forum was created.
The forum was originally located at bitcoin.org/smf, then forum.bitcoin.org (hence the redirect), and finally bitcointalk.org. Fun fact: The name "bitcointalk" was invented by Jeff Garzik, and he's the one who bought the domain.