I tried searching MonkeyTilt accepted countries yet I found nothing and it seems people still ask same question concerning restricted countries due to the old list. The old list is irrelevant, it will be nice if we get an updated list anyway this idea is absolutely nice, trying the signup process first before concluding definitely most people are still confused about the restriction.
It will be a very long list for having list of accepted countries, instead having a list of restricted countries will do the same work. And as far as i remember there is not list for accepted countries but only the other way around.