Well that's exactly the point I was trying to make: HN (and reddit and many others) look extremely US centric but I'd love to see access log, for I think Europeans may not be so few after all, just extremely more silent.
The similar Slashdot poll a week or so ago ('What would you prefer to be paid in? Dollars / pounds / euros / etc etc') saw a similar effect: pounds had a huge lead for most of the UK day until the US woke up and hammered the 'dollars' button :)