And I agree with that basic idea that government shouldn't be the arbiter of Truth (deliberate capitalization), in that it leads down BAD roads fast, but at the same time, that's why libel/slander laws exist, and those are generally seen as OK, though then you get into things like S.L.A.P.P lawsuits which are horrific abuses of such.Who gets to decide what is true? Do you want -THE GOVERNMENT- to decide if something is true or not?
The Justices are right: just because a private citizen could conceivably silence another's speech doesn't mean the government gets to. Even if it's a lie, unfortunately.
So I dunno.