Perhaps we should legislate against media outlets that spread fake news on purpose, or in another way try to disincentive it. I believe fake news is a threat to the proper functioning of a democracy.

A random idea I just had, which will probably be impossible to implement, but here goes. Why not, similar to how STEEM power works, give people voting power, depending on how much they know on a subject. Let's say there is a public vote, referendum, etc. and the voting matter is a scientific subject, then I believe the vote of a scientiest should have more voting power than that of someone who basically has no clue what the vote is about.