Pactivist
Passive activists. They frequent facebook and other social media sites to complain about the world's problems, but don't actually do anything about it. They form groups such as "anonymous" to discretely bitch online towards someone else without someone getting pinned with blame. Mostly internet trolls who have too much time on their hands.
I saw Maggie on fb posted an article about how Obama isn't taking action on the fight against Ebola. Straight up pactivist.