I think the anti-Americanism among artists only relates to not wanting to deal with hypocritical American policies on nudity and their tendency to impose their views on everyone.
They're very likely perfectly fine with Americans and foreigners in general seeing and sharing work without trying to change the culture of the site (which is fair and something more communities need to start expecting, there's an increasingly popular idea that various hobbies have been ruined by uninvested "tourists" that come into the community, force it to change to accomodate them, then leave after the original audience has been alienated).
