Satoshi uses British English and inserts two spaces between sentences. Does Paco Ahlgren?
Check for yourself: http://coinbits.com/bitcoin-cannot-fail.html
But i must warn you that wordpress sometimes auto-formats text depending on users settings, so, it may not mean much if he doesn't use the 2 spaces between sentences in his blog
About the british english, well... I can't pronounce myself because i learnt english watching to hollywood movies lol