So is fighting misinformation a lost cause, or can we come up with some plan that doesn't involve a small group of people censoring it? Would some kind of distributed rating system like upvotes/downvotes be acceptable, or is the better course of action to be okay with letting all information -- even if specifically designed to trick people, not only the most gullible, but even the most discerning skeptics -- circulate?

I believe the government should not have a say in whether or not all information circulates, but ordinary people who build information sharing systems (and I don't just mean electronic ones) have an opportunity to figure this out. Should they not?