Moderation in a private vehicle for speech could take it seriously at any stage they choose (and I'd argue that the freedom to decide where the line is inside private stewardship is in fact part of freedom of discourse).
And there probably should be forums which have content standards based on truth according to the best efforts of those running the place to determine the truth. Perhaps not every forum should be that way, but some could be, and I think that's the standard that things like scientific journals aspire to.
#4/#5 -- I have questions about whether police/executive enforcement should be directly dealing with cases like this, but it certainly seems to me that people would be within their freedom of discourse rights to take someone making those statements to court. And courts are also places where questions of truth/fact are taken seriously along with questions of law, and obligation to be truthful solidly outweighs any freedom some might imagine they have to lie.
And there probably should be forums which have content standards based on truth according to the best efforts of those running the place to determine the truth. Perhaps not every forum should be that way, but some could be, and I think that's the standard that things like scientific journals aspire to.
#4/#5 -- I have questions about whether police/executive enforcement should be directly dealing with cases like this, but it certainly seems to me that people would be within their freedom of discourse rights to take someone making those statements to court. And courts are also places where questions of truth/fact are taken seriously along with questions of law, and obligation to be truthful solidly outweighs any freedom some might imagine they have to lie.