I confused
Mur Lafferty twice recently via Twitter. The second was an accident due to the vagaries of TwitterFox, but the first was a response to a tweet in which she used the term "classy." I replied with my long-held rule of thumb that (present company excepted) people who use the word classy usually aren't. Her response was "Um, OK." I would have explained further, but A) it was Twitter and characters are limited and B) she's a working author who has better things to do than parse my pet peeves.
If you're reading this blog, you (obviously) do not have better things to do. Therefore...
Nearly every time I've ever heard the word "classy" used, it was used to denote affluence and taste. I have NEVER heard it used by anyone who possessed both if either. In fact, using the word immediately makes someone sound like Edith Bunker, a 1950s mobster (e.g. "Hey, dis is some classy joint."), or possibly Frank Sinatra. Oh wait, those last two are redundant.