I think you’re onto something here with people thinking they know a lot, but isn’t the real issue anonymous internet posting? Having to take zero responsibility for sharing ideas has ruined intelligent discourse society-wide: Web 2.0, then social media, turned out to be the beginning of the end of experts having credibility. Journalists, scientists, all experts became demonized by persuasive bots or anonymous internet posters. Instead of a world of democratized intelligence as promised, we got a world of “anyone’s opinion is valid, and I don’t even need to know their credentials or who they are.” If we forced everyone to have to stand by everything they said online on every forum, we’d have a lot fewer strong opinions and conspiracies, IMO. People (voters) would be thinking a lot harder about their ideas and seeing a lot fewer validations of the extreme parts of themselves.