Katy, it's all good. It's been happening for years now and fortunately people are getting better about at least citing. Even Gawker has grudgingly started putting "via reddit" at the bottom of articles they've harvested. There's really nothing that can be done about it, but hope people do the right thing. Social media platforms like reddit, twitter, tumblr, etc are always going to be able to discover and create new content faster and more creatively than even a room full of the smartest, wittiest, best-smelling editors and writers.