I personally think it's fine to take certain liberties. But if you take really drastic ones it's just not going to look like the fashion anymore.
I don't consider myself an elitest in the least, I'm not about to make fun of people just because their skirt is the right length. Adhering to the rules does not an elitist make, that's a silly idea.
The purpose of this was merely to give people who are new to the fashion an idea of what it traditionally entails, and a bit of a warning that there are sites out there that will rip you to shreds.