Average person doesn't have strong opinion about some bit of data irrelevant to their life.
If there is a thing, and topic about it has reached the internet discussions, the participants will have an opinion regardless of their actual practical knowhow about the thing. They'll form their opinion otherways. Platforms like Reddit favour a master opinion due to score and moderation system, so one out of N wrong theories will surface as the master opinion.
In real life, if you ask bunch of random people about the thing they don't know, you get wildly different answers, and largely no-one will back up anyone there. Certainly not in enough force to push a confidently wrong answer up as the "people's opinion"
