More notable thing that probably nobody noticed is that Satoshi's hard drive was using NTFS compression, most likely on whole partition. This is very untypical to have NTFS compression enabled on whole partition upon manual formatting.
How would you know this fact?
Edit: restored message from crash
This made some followers think that Satoshi was a good cryptographer and mathematician but he was not a good programmer.
The alternative theory is that he was an "experienced programmer" with an equivalent of black-belt in billable hours padding. That doesn't preclude being "good programmer", just puts in the background to the primary goal.
Yet another alternative theory is that initial coding was done by Satoshi's contractor, not Satoshi himself; and that later on they split for whatever reason.
Those then segue to the whole group of theories that Satoshi was an employee of some government spying agency. Those theories further split into two subgroups:
a) intentional covert work for which Satoshi was normally paid
b) after-hours personal project that unexpectedly grew, possibly affecting negatively his normal duties.