Because giving every maniac an equal voice and hearing them out is asymmetric. They have the burden of proof to have said “my perfectly validated facts I’ve learned in two decades as a scientist” or whatever if they wanted to provide that context.
Then again, here I am arguing in good faith with you, so more the fool I.
> They have the burden of proof
This isn’t how the algorithm works. It costs less than $10k to get some conspiratorial nonsense circulating nowadays, and less than $1mm to flood the zone.