First things first.. I didn't spot it while reading through this thread, so I'll clarify that the person who WROTE that website IS ENGLISH. In fact he's a near-namesake of mine, from near me.
The site is a mix of irony and cynicism. The content is clearly directed at Brit eyes because of this. A non-English person reading it may OR may not understand the content's orientation. The humour in it isn't exclusively British, but it is typically British.
If you're British and didn't get it, then go back and read it again KNOWING it was written by a Brit FOR Brits. If you still don't get it, you either don't have a [typical/normal] British sense of humour or you're just thick. Sorry, but that's plain to see.
The content in the site is intended for Brits but is written under the guise of an American's guide to Britain. For the comedic content to work it had to be done this way. For clarification, it IS a minor dig at
IGNORANT Americans,
NOT ALL Americans and having lived and worked in the US for several years in the past, It DOES have a measure of value.. just as I was once an ignorant Limey.
The examples of English vs American language, for example, in the site are ALL ones that I've met with in real life. In one of my journeys between the US and UK, a young American girl who was travelling to the UK for the first time, asked if Britain had
any beaches. Her name is Nancy, we're still friends, after our first transatlantic flight 22 years ago. She's now married to an English independent financial investor
There are a LOT of good reasons why Americans appear ignorant to Brits. The US is a huge country, and it has a lot going on INTERNALLY. Enough each day to fill a thousand days. In relative terms, Americans know a LOT more about Britain than Brits know about, say, Bolivia.
Ignorance is a comfortable place to stay, and you need both time AND an incentive to depart from it. Rarely are we removed from ignorance by force, except when something bad happens. Sad but true.
Perhaps we Brits have lost our sense of humour. This can happen when we're unsure of ourselves, and I think it's painfully obvious that that's where we're at right now. Historically Britain HAS been able to take a "ribbing". Maybe when we get our confidence in our place in the world back, we'll be able to do so again.