I found the blog absolutely fascinating. It taught me a lot I didn't know about differences between US and British English. For example, I'd no idea that to use 'clever' of, for example, a bright child was a Britishism (US 'smart' or 'intelligent') or that Americans don't use 'ginger' to describe auburn hair. I'd also no idea that Americans often adopt Britishisms - I'd always asssumed the traffic was one way in the opposite direction.