Well, no.
The file "datetimes.yaml" contains a list of serialized ISO 8601 timestamps because that's how you represent timestamps in yaml. These timestamps represent the different timestamps that bitcointalk.org gives to the posts made by the Satoshi pseudonym.
I am not implying that anyone who uses ISO 8601 might be Satoshi. Rather, I am providing you with a list of timestamps in ISO 8601 format. I am making no claims about how Satoshi tends to write timestamps (and I don't remember if I even looked at that, I think I got bored).
These timestamps can be used to determine which timezone he is a member of, or which timezone he wanted you to think he was a member of, or to compare against other email headers. For example, I would love to compare this data against a historically-accurate cypherpunk email archive. (I do not have one at the moment.)
However, he could have written some small amount of software to delay the posts he wrote to the forum, but some of them look very timely. He could also have written software to delay the times that his posts were posted, to make it sync up with the timestamps of another cypherpunk member (which would be hilarious and evil).
I think a more thorough analysis would have to look at each individual Satoshi forum post and determine whether or not it was written "probably delayed", because sometimes the delta between the post he wrote and the post he was replying to was very tiny, which would improve the chances that he was not on a delay timer (unless he spoofed all questions he replied to, which I also doubt).