January  UTC Wikipedia is hosted in the US so US laws on copyright etc are enforcable Thats just the way it is and we need to avoid legal action being taken against the foundation To be honest I dont see big differences in behaviour of editors by nationality so far as nationality is apparent  I suspect that there are just more Americans here than any other nationality simply due to sizes of populations of Englishspeakers so any group of editors is likely to have more Americans than anything else including the helpful constructive thoughtful ones I think however that there are a higher proportion of editors here now than ever before who have little interest in adding and improving content preferring to delete argue try to raise the bar on notability and fair use guidelines to allow more to be deleted etc but I dont see this as a wholly US phenomenon