The problem with that idea is that it takes more effort to debunk a lie than to tell one. It also takes more effort to absorb a debunking than a lie. That's why disinformation works.
Here's an example: JFK ate babies occasionally, and the media hushed it up. Oswald was actually a secret high-level CIA operative, and was so outraged by this that he assassinated JFK for it.
It took me two seconds to write that. How much effort would it take you to debunk it?
It's just not practical to put all the burden of combating misinformation on each individual's shoulders. It's also necessary to stop the spread of misinformation. That doesn't need to be done by a central authority, but people who've been convinced by a lie will perceive that as "censorship" by one.
> scientific consensus is not arrived at when every scientific paper says the same thing. this is a fundamentally wrong view of science and also reality. on any given topic, the corpus includes opposing conclusions. eventually we figure out why and discern the underlying principles.
Scientific consensus is also not arrived at by publishing literally every crackpot idea, and answering each with "more discussion." Science has several mechanisms for "censoring" bullshit and misinformation (e.g. peer review), and it couldn't function without it. "More discussion" is saved for cases where those mechanisms failed.