I have never adhered to the idea that fashion has "rules" (although there definitely is such a thing as a fashion faux-pas), and I can't stand fashion elitism, but I think if you're going to get involved in a style you should at least know where it's coming from. It's more fun to break the rules if you actually know what they are in the first place. Besides, if someone calls you on a misstep you should always be able to say, "I know... I just don't care."
"And we are all told from the moment we open our eyes, that everyone is entitled to his or her opinion. Well, thatís horsepuckey, of course. We are not entitled to our opinions; we are entitled to our informed opinions. Without research, without background, without understanding, itís nothing. Itís just bibble-babble. Itís like a fart in a wind tunnel, folks." --Harlan Ellison