We all have heard about "the same lies being repeat over and over". Well, if these lies are indeed all kinda the same, then it should be relatively easy to (1) gather a proper, extensive set of facts that disprove the lies and then (2) hire an army of war hamsters to introduce these facts into discussion - following the guidelines from (1).
Right now this approach doesn't work very well, because as soon as you start attacking anyone with facts and logic, you simply get banned from the community. But I'm sure changing this is within the power of the social media.