I am presuming @PabloDiscobar means that in general, online spaces gravitate towards American-focused content posted by Americans, for Americans, moderated by Americans. The web is a different place when you're about 6 hours ahead of the main content generators. Other kinds of views and experiences get posed, but get washed away the moment the East Coast wakes up.
An example is Reddit's 'WorldNews' sub mainly focusing on American issues. As a Dutch person, I would not consider some Texan individual's issues with city council world news.