Hmmm... on reflection, "wrong" is too strong.

I was thinking that it was that people would have to self-modify to adopt US culture. But, actually thinking about what was being said (thanks, MixedNuts) and what I quoted indicates that it was just self-modifying to become familiar with the concepts.

I still think this is unreasonable, due to, for example, the amount of effort it would take to get decent coverage across all areas of the culture, i.e. it's much easier for US users to make a few annotations ("in the USA", or "governor of Massachusetts", to increase googleability at least).