That's a couple of years out of date. These days it would be more like "server-side doesn't matter, we use jquery on the front end to build a rich front end without proprietary products." Though, since I've actually said that myself, I'm not willing to admit that's a trick yet.
"... Mapmakers will often use “copyright traps,” bits of information in their maps that are purposefully wrong ..."
Very true. I once had to re-do a map for this exact reason though I'm not sure the "purposeful" fit was to get the major intersection on the page or to catch people out.
"... In Australia, the butchers have a secret language called “rechtub klat” ..."
From the article it appears that in "rechtub klat" the letters in a word are reversed, but the words have the same order in the sentence. So it would be:
