Does Facebook Encourage Lazy Friendships?

As a result of social media, Whitney Erin Boesel fears "we now expect our friends to do a greater portion of the work of being friends with us":

We’re busy people; we like the idea of making one announcement on Facebook and being done with it, rather than having to repeat the same story over and over again to different friends individually. We also like not always having to think about which friends might like which stories or songs; we like the idea of sharing with all of our friends at once, and then letting them sort out amongst themselves who is and isn’t interested.