Facetivist
One who posts and/or comments relentlessly on/about controversy, world-change suggestions, criticizes how the general populus is ignorant, and/or promotes change only on Facebook.
John: "People need to get off their technology and live life. #wakeupworld"
Sarah: "You post stuff like this so much but don't follow your advice, you're pretty much just a Facetivist."
Sarah: "You post stuff like this so much but don't follow your advice, you're pretty much just a Facetivist."