That is a snapshot from 2014. Archive.org actually shows that he added that backdated page in 2014:
https://twitter.com/mylegacykit/status/1220264990810300416The block was archived prior to 2014-- back to 2011. But pages like that simply did not exist prior to 2014. You can also verify this by loading
https://web.archive.org/web/20111123102230/http://gse-compliance.blogspot.com/Which is a page actually archived in 2011. And notice that it says that there are 81 posts in 2009. If you load any version of any page up until 2014 they all say that there are 81 posts in 2009. But the in 2014 that page is added to the archive and the history says 82 posts in 2009.
As you note, he also made other deceptive backdated edits.
(my ID here is 217)
So you're saying you didn't buy the account?