Sites like HN, reddit, Twitter etc are de facto US based, assume if no country or jurisdiction is specified that it's the US. Now, which state it is in the US is a different matter.
That's fine, some people are of course. But when you look at what people mean when they provide no jurisdiction, it always seems to mean the US. That's all I meant by de facto US based, because if it weren't, wouldn't people state the jurisdiction as "US"? They don't, so it must mean that the US is what is assumed.