The goal, says Facebook, is to ensure users are more frequently see content that actually matters to them on a daily basis.
For all content marketers, including anyone using legal content to draw potential clients, this makes it even more important to provide useful, unique information, instead of random nonsense. This doesn't mean that you must produce 5 updates a day. Instead, it means that when you do publish something, it should be of real value. The easiest way to find you or your business "unfollowed" on Facebook is to post every hour with content or links that do not matter to others.