If you think the OP's asking about registering the bitcointalk.org web domain it's Jeff Garzik. He didn't say anything about bitcoin.org he's asking about bitcointalk.org. We don't know if he means who's registered the forum name but the forum's founded by Satoshi it doesn't matter if it's copied from bitcoin.org it's founded by Satoshi.
The OP hasn't been online since 4 years so we can't ask him to explain his question but he's asked
I was wondering who founded bitcointalk It's strange you've posted in a topic which hasn't seen activity for 8 years. It's so old even the OP's hasn't been online for 4 years. If you'd read the replies you would've seen
the reply.
You've answered a question which's already been answered 8 years ago. Why did you dig up this topic?
Bitcointalk.org founded by theymos in June 2011. Bitcoin.org founded by satoshi in 2009.
It was Jeff Garzik who created bitcointalk.org in 2011. Satoshi did not create bitcointalk.org. Bitcointalk.org was a clone of bitcoin.org. Give me a reference of satoshi or any high ranking members before 2011 talking about "bitcointalk".