Which I guess should be called confirmation bias (i.e. looking for facts which fit your idea and discarding everything else). He may not be a native English speaker at all (which you don't take into account), so his confusing mix of different spellings (like color vs colour, etc) may just be a spell checker getting in the way (not speaking of trying to deliberately confuse future armchair detectives and couch investigators). And that's apart from Satoshi probably being a group of people with different language backgrounds
(like color vs colour, etc)
His spelling of English is very consistent. Consistent with Canadian English. In Asia they learn UK English, and thus he would have spelled it realise with a S
Well, there's a simpler explanation (which I hinted at in my reply above). You just set the spell checker of your browser to use Canadian English (or whatever) as default, then stick to its corrections and bingo! Quite a few folks now start to claim that Satoshi "could only ever be a Canuck". A simple explanation, isn't it? And something not totally unexpected from someone who was definitely trying to hide their identity
Corrected the formatting for you