Writing to Trends

I’m trying something new with my blogging: I’m going to have fun with it. (I know: what a trendsetter.)
Instead of seeing this space as a place I have to fill because PLATFORM PLATFORM PLATFORM, I’m going to throw caution far into the wind and write shorter, funner—yes, funner—posts that, I hope, will also be insightful, helpful, and cause for further online conversation.
To that end, I attended DFWCon over the weekend. It was my second year to do so. If you’re a local writer—and even if you’re not—I’d highly recommend it. You’ll see why if you follow these posts over the next few weeks. (If you’re on my email list, and if I set that list up correctly, you’ll receive these posts in full once a week. If you’re not on my email list, what are you waiting for?)
Instead of writing one EPIC post (that I’d never take the time to start or finish anyways), I’m committing to sharing a few choice lessons from the sessions I attended.
To wit, in the first Ask an Agent panel, one of the agents essentially said:

“If you write for trends, the trend will have passed by the time your proposal gets to an agent.”

I believe this was from Christopher Rhodes.
In other words, don’t write the next Harry Potter, Game of Thrones, Hunger Games, or Twilight. Don’t write for what’s popular right now. The process of traditional publishing is so slow—fodder for a future post—that what’s hot right now will very much most likely be ice cold by the time even your proposal gets to an agent.
The moral of the quote is this: don’t waste your time chasing vampires.
Conceivably, at this moment, this could mean using the words girl or water in any of your novels, too.
What do you see as the current trends that may not be worth writing toward? Have you made that mistake? Is it a mistake? What if what you truly love writing about is a current trend?
Photo Credit: Mitchell Corsack | MAC Photography Flickr via Compfight cc