Hi there
Giant said:
When I am writing access codes out for peopele to access sensitive
information on a private website, it would be easier if I or they could
easily distinguish, A2B0OC. If english is not a first language, it makes it
simpler. Got nothing to do with your statement, which maybe shows the depth
of your intellect.
OK, I'm in Europe here, and I have to tell you: we don't write our zeros
generally with a strikethrough (some people may do so when they write on
paper, but I've seen this on both sides of the Atlantic). [A lot more of
"us" here writes the number "1" with its proper serif, but that's
another story.

]
Whenever the difference between "0" and "O" or "1" and "l" is important,
it does make sense to use a font where the stuff does not look alike.
Passwords are a good example. So, in your case, use a fixed-width font
like Courier New and all will be well.
I fail to see why this would have anything to do with the origin of the
reader, though -- if you use a font where letters and figures may easily
be mixed up, (some) people won't read the intended string -- no matter
where on this planet they have been bred.
I don't want to be caught in any flame war, but Jezebel's first
paragraph was spot-on, I'd say.
Greetinx
Robert