We definitely use a mix of US/UK spellings in Canada. This gets further reinforced when you work a lot with a particular spelling (eg. we use spell 'colour' with the 'u' but every graphics library / css / etc use 'color' so its a toss up on which one I actually type)

> The other oddity in the code is that there is a mixture of US/UK spellings being used, which also suggests more than one person.

Not an oddity are all, it suggests a non-native speaker. US/UK spelling inconsistency is rather common unless you went to school in one of the two.

Or, a person that was born in the US and educated in the UK, big into cryptography and the cipherpunk mailing list and often mixed up spellings on social media.. like I dunno, Len Sassaman.

There were plenty of other oddities.. like the skeleton for a poker game in the code? Maybe a test for the digital currency? Maybe underlying motivation? Maybe... who knows.

Mixture of US/UK spellings could indicate he isn't a native user.

> mixture of US/UK spellings being used

Maybe he is just canadian. We use a mix.