I use NFC, both on my phone via Google Wallet, and about half of my cards have it. It doesn't bother me in the least. I've never had anyone I've ever known had a card duplicated and used for fraudulent means by reading the NFC tag from PayPass, PayWave, etc.
For one thing, it's a pain in the ass, literally. NFC really doesn't work until you're *very* close, and even though the article says contact less, in practice, that's not very true - you have to be 2-3 inches away.
I'm a lot more worried about the conventional stuff that works without contact and on all cards. I've never had an issue (thankfully!), but I've had friends get burned in a couple of relatively low-tech ways:
- A waiter copies down the number and buys a TV the next day from bestbuy.com
- The cousin of the owner of a shoddy gas station installed a card swiper on top of the card swiper on the gas pump
- Idiot merchants that save full credit card numbers in their database and get hacked