Hmm, I see it as the opposite. Why wouldn't Facebook want to register themselves as a sharing output for images and text? They want us to share as much as possi

Hmm, I see it as the opposite. Why wouldn't Facebook want to register themselves as a sharing output for images and text? They want us to share as much as possible, and this would just make it easier for users. Otherwise, you'd see sharing menus across the web with "Google+, Twitter, etc." on them and no Facebook. Not a position I think they would want to be in.