I was thinking of a short definition, clear and concise, well written. Just like those that appear in the first post.
As you know, each and every one of those definitions can be found in at least some other place, with bells and whistles, and lots of colors, like the reference you have kindly provided (which I already knew, thanks anyway). zeppelinrox is a magnificent script ninja, no doubt about it. But his user documentation is not exactly what I would call… spartan.
What this thread is aiming to, IMHO, is a straight, plain, short source of information. Like a reference, of sorts.
Just for the sake of completeness: right now I'm not looking for solutions around V6. It was just that while reading this useful thread, and trying to add some value to it, V6 just came to mind.