> The best disinfectant is sunlight

Have you actually tried to shine sunlight on online misinformation? If you do you will quickly find it doesn't really work.

The problem is simple. It is slower to produce factually correct content. A lot slower. And when you do produce something the people producing the misinformation can quickly change their arguments.

Also, by the time you get your argument out many of the people who saw the piece you are refuting and believed it won't even see your argument. They've moved on to other topics and aren't going to revisit that old one unless it is a topic they are particularly interested in. A large number will have noted the original misinformation, such as some totally unsafe quack cure for some illness that they don't currently have, accepted it as true, and then if they ever find themselves with that illness apply the quack cure without any further thought.

The debunkers used to have a chance. The scammers and bullshitters always had the speed advantage when it came to producing content but widespread distribution used to be slow and expensive. If say a quack medical cure was spreading the mainstream press could ask the CDC or FDA about it, talk to researchers, and talk to doctors dealing with people showing up in emergency rooms from trying the quack cure, and they had the distribution networks to spread this information out much faster than the scammers and bullshitters.

Now everyone has fast and cheap distribution through social media, and a large number of people only get their information from social media and so the bullshitters and scammers now have all the advantages.