Interesting article about the upcoming changes in facebook privacy. I'm not surprised facebook is moving towards public feeds, because as the article puts it:
Facebook holds a giant reservoir of demographic and sentiment data. It is the mother lode - and it's been inaccessible so far because everything has been private so far.
For public entities and organizations such as libraries, universities, etc. a public feed might make facebook more useful for outreach and education. However, for the general user or private organizations, I can see where the changes will be huge, especially, if facebook doesn't clearly explain how to opt out or restrict the public feed.