It's interesting to me they are using human moderators and Americans at that (for what seems to be American/British companies) - I don't know much about machine

It's interesting to me they are using human moderators and Americans at that (for what seems to be American/British companies) - I don't know much about machine learning but it seems like this is the only way to do this somewhat accurately given the expressiveness of written English. The current attempts by the (admittedly much larger) Facebook and Google to use English literate in foreign countries to moderate content is almost self parody at this point from the examples given in that documentary that made the front page of hacker news last month.