He moved on. The account he was as posting from was not his first not by a long shot and likely won’t be his last.
How can you be so sure that it's not his first account? what was his other account then?
I'm not entirely sure who it could be also. It can't be satoshi because the style in writing is so completely different.
He is not lauda. He is significantly smarter than lauda.
His level of thinking is like a co-founder of this forum or Bitcoin, I'm not exaggerating, he got too much knowledge.
Or someone who just wanted to learn about the coin in-depth and decided to go through the source code and learn exactly how the currency worked (probably too much for a lot of us to consider, but maybe he was a professor or someone who wanted to use blockchain a lot more)?
Are his addresses still in use?