If you're like me you throw a lot of crap into the bank. And after a day of dailies, I go to break down all the junk I've picked up only to have to make sure I'm not breaking down a set I might be working on stored in the bank. Now you can lock it but that took a little bit of time. And really annoying if you're improving it or even enchanting. That's probably still the best way to deal with it but now they gave us the option at the crafting stations to ignore bank contents. So you only destroy what you have in your bag.
I've been wanting this option for the longest so I'm quite happy that they added it. Now I realize this was probably in the patch notes but I don't read those since I'm allergic to boring stuff. I was surprised to find the option today (didn't notice it yesterday). So ZOS thank you thank you thank you.