Bitcoin wasn't anything extraordinarily revolutionary; it built upon others' work over decades of collaborative progress, and introduced few truly novel ideas. Very impressive work by all means, but it didn't require genius-level skill or knowledge.
It's common for older writers to insert two spaces after a full-stop. In fact, go through the cypherpunk mailing list (and many others) and you'll see it was the norm. As for Satoshi being British, he used predominantly British English but occasionally used American spellings and terms; it easily could've been intentional misdirection.
Adam Back doesn't write at all like Satoshi. Back's writings are filled with grammatical errors and he often makes spelling mistakes, which Satoshi seldom did.
The British English could be a misdirection. Satoshi was always quite inconsistent, sometimes using US spellings ('color', 'check', 'optimize'). One that always stood out to me was his use of 'gotten' – we don't typically use that word in British English, but an American English speaker attempting to disguise themselves as a Brit most likely wouldn't be aware of that fact.
> Among people who try to guess Satoshi's identity, there is also a surprising bias toward fame or at least well-known people.
Very true. Every time I see people seriously propose Elon Musk or Paul Le Roux or some other flashy/cool celebrity figure, I'm reminded that people are just attracted to spectacular stories and theories. Similar to how every missing persons case eventually has "trafficked by millionaires for sick satanic rituals" proposed as a theory.
I think Satoshi was probably a regular, older IT professional who developed an interest in digital cash, did some research, and familiarised himself (somewhat) with earlier proposals and discussions. People suggest he was a seasoned cypherpunk, but when he first began posting about Bitcoin to mailing lists, I seem to recall someone having to correct his formatting (I don't remember the specifics, and I wish I could find it, but it stood out to me at the time as suggesting unfamiliarity with mailing lists generally).
The hyphenating patterns are particularly curious, to me.
Some supposed idiosyncrasies ('bugfix', for example) are just standard renderings amongst programmers/tech types; using those as evidence somewhat betrays the author's lack of familiarity with the field/community (as if the C++ and public-key cryptography 'evidence' didn't make that plain enough...).
> I wonder, based on the large number of distinct hyphenation errors, whether Satoshi is even from the UK or the US.
How many native English speakers are truly familiar with hyphenating compound nouns and adjectives? I'd say a majority don't know how to consistently hyphenate correctly.
My understanding is that a company's location is largely irrelevant; a company becomes subject to the GDPR when they handle EU citizens' data (or UK GDPR when it's UK citizens), and the EU/UK will still try to fine companies that aren't resident in the EU/UK - enforceability is a different question, although non-payment of fines opens the door to other remedies e.g. blocking access, seizing assets, etc.