I guess it all depends on the distribution/business model of fact checking. News magazines and classical broadcasting can actually decide what to publish. Other might call it censorship if non-verifiable stuff does not happen there, but that is clearly a matter of scaling and money. I agree that fact checking the internet is useless. However, that is why I heavily rely on our well financed national public broadcasting. In cases that they cannot check, I at least get mostly a disclaimer like 'war party is source of information'.