It is very American in its moderation. Things that would be immediately deleted on a UK site, are allowed to run, sometimes seemingly unchecked, for ages. (Martin Gibson)
The blind adherence to freedom of speech as enshrined in the US constitution, is overdone. What many seem to forget is that freedom of speech does not include the freedom to be gratuitously nasty and insulting. If more of the nasty remarks were removed ASAP, it would alter the tone of many discussions on here, for the better.
Yes it's American in origin, and outlook. That in itself isn't a bad thing per se, but there is a lack of understanding on both sides as to what is acceptable, or amusing, or neither.