I was going to write this as a kind of Swiftian "modest proposal" but it occurred to me, the longer I thought about it, that I am actually more serious about this than I thought.
Libel is still illegal, right? Is there also a law against intentional dissemination of false information? What about irresponsible dissemination of bad information? There should be, if you ask me.
What I think is this: there should be a fine for anyone who either intentionally or irresponsibly posts information that is not true or that falsely attributes statements to particular people. The ripples one bad post can cause can be very damaging if related to serious issues. They can also invalidate decision making in terms of things like voting.
Sometimes, it is just a matter of a desire for faithfulness to history. Did Einstein really say what everyone wants to believe he did? It's too easy to put a quotation on a picture of the man and pass it off as truth.
But how often do we see memes of politicians with quotations under them (usually under an extremely unflattering picture) that they never said. The people that post these have no criteria other than the fact that they want to believe it because they already feel a certain way about the person in question.
Then ends do not justify the means when it comes to false attributions. I know it serves the purpose of a conservative to make us believe that a liberal said that he would vote for Karl Marx if he were alive; I know might bolster the liberal cause to make us believe that a conservative said that we should dig Burmese tiger traps to catch immigrant children and stop them from coming across the border, but, doing this is wrong. Period. It doesn't lead to discourse, it leads to brawling. It can even be seen as defamation in some cases, which is a crime.