Is Discord social media? Social sure, but not media really.
It always seemed to be more a live communication/chat app to me.

Couldn’t each one decide how much to charge and pay for their tokens? Like a swarm of countless centralized currencies, rather than a single decentralized one?

Then you have a central org you need to trust with the money. It’s not really distributed or federated system anymore.

Whatever the term, if the coins can be exchanged back into a real currency or goods, they have real value, and as such they’re as good cash.

Wikipedia:

Pachinko balls won from games cannot be exchanged directly for money in the parlor, nor can they be removed from the premises or exchanged with other parlors. However, they can be legally traded to the parlor for so-called “special prize” tokens (tokushu keihin (特殊景品) [ja]), which can in turn be “sold” for cash to a separate vendor off-premises.

That’s still not going to work without either a blockchain or central trusted management org of some kind.

So if they have real cash value, how do you secure a distributed currency system without a blockchain? How do you stop the creation of fraudulent tokins?

I’m not sure what problem this is trying to solve exactly.
Why not just a simple subscription to your home instance/server?
What would people get from trading these tokins, can they cash them out?
If not blockchain how do you guarantee or secure these tokins being traded across instance/servers?

Just link directly to the audio file?
This seems like too obvious an answer though. Maybe I’m not sure what you’re asking.