It’s a piece of media that’s critical of a fascist regime, and the person who says it’s fake is a .ml
if they ever answer, it’ll be dismissive about how all western media is biased against china/nk/Russia. That’s as close to an explanation of “why it’s fake” as you’ll get.
You should always be critical of any media that doesn’t have a concrete source though. I don’t personally know anything about radiofreeasia, so fuck if I know how reliable they are to begin with.
But stabbing your neighbor isn’t exactly something most people are willing to do.
And any sort of attempt at organization leads to Alphabet Squad raids and whatever bullshit charges they feel like throwing at you after deciding you’re guilty of being a dirty commie/socialist/librul/not them.