Note that the donation form is in USD, though it doesn't seem to say so. A bit confusing for those of us in other countries with "$"; the form knew I was in New Zealand.
Canada too. It's one of many Americanizations that we have to tolerate daily online. And if you think it's bad for the Kiwis or Aussies, because Canada is in America we are regularly grouped into "America" or "North America" for things like online store region. Leads to confusions on a regular basis.