I found both the list and the reactions hilarious. These are the sort of morons who'd rarely leave their homes. Hell, they'd probably never go to the north of England (past Birmingham, I'd be surprised if they made it as far as Manchester) as the accents alone would terrify them, let along any of the slang. People like this arn't worth any attention.
Still, I do find some 'Americanisms' (I doubt the average American uses most of them), a bit pointless. Deplane? Really? what's wrong with disembark?
This article was in responce to another equally silly article about how words have made it across the pond and some people hate them, like Talented for example. I see nothing wrong with that word, it's quite useful after all. 24/7 is simply a quicker way of saying 24 Hours, 7 Days and again useful.